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12112000221020 = 2257297127414267
BaseRepresentation
bin1011000001000000101101…
…1110000111111101011100
31120212220012010020211120112
42300100023132013331130
53041420334024033040
641432102011305152
72360030441125100
oct260201336077534
946786163224515
1012112000221020
11394a741402637
12143747844b1b8
1369b20641060b
142dc31c6b7900
151600da921365
hexb040b787f5c

12112000221020 has 72 divisors (see below), whose sum is σ = 29892916244016. Its totient is φ = 4109874564096.

The previous prime is 12112000221007. The next prime is 12112000221023. The reversal of 12112000221020 is 2012200021121.

12112000221020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 12112000220986 and 12112000221004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12112000221023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 63612074 + ... + 63802193.

It is an arithmetic number, because the mean of its divisors is an integer number (415179392278).

Almost surely, 212112000221020 is an apocalyptic number.

12112000221020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12112000221020 is an abundant number, since it is smaller than the sum of its proper divisors (17780916022996).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12112000221020 is a wasteful number, since it uses less digits than its factorization.

12112000221020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127414387 (or 127414378 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12112000221020 its reverse (2012200021121), we get a palindrome (14124200242141).

The spelling of 12112000221020 in words is "twelve trillion, one hundred twelve billion, two hundred twenty-one thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 49 70 97 98 140 194 196 245 388 485 490 679 970 980 1358 1940 2716 3395 4753 6790 9506 13580 19012 23765 47530 95060 127414267 254828534 509657068 637071335 891899869 1274142670 1783799738 2548285340 3567599476 4459499345 6243299083 8918998690 12359183899 12486598166 17837997380 24718367798 24973196332 31216495415 49436735596 61795919495 62432990830 86514287293 123591838990 124865981660 173028574586 247183677980 346057149172 432571436465 605600011051 865142872930 1211200022102 1730285745860 2422400044204 3028000055255 6056000110510 12112000221020