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13112212223020 = 2254123368628767
BaseRepresentation
bin1011111011001110110011…
…0000000111010000101100
31201102111220121121002010111
42332303230300013100230
53204312302312114040
643515400033545404
72522216561636551
oct276635460072054
951374817532114
1013112212223020
1141a5948a68799
121579299415264
137416265a6311
143348c4d48a28
1517b12aab2dea
hexbececc0742c

13112212223020 has 48 divisors (see below), whose sum is σ = 28328308339968. Its totient is φ = 5094999587840.

The previous prime is 13112212223017. The next prime is 13112212223021. The reversal of 13112212223020 is 2032221221131.

13112212223020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 13112212222982 and 13112212223000.

It is not an unprimeable number, because it can be changed into a prime (13112212223021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34123324 + ... + 34505443.

It is an arithmetic number, because the mean of its divisors is an integer number (590173090416).

Almost surely, 213112212223020 is an apocalyptic number.

13112212223020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13112212223020 is an abundant number, since it is smaller than the sum of its proper divisors (15216096116948).

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

13112212223020 is a wasteful number, since it uses less digits than its factorization.

13112212223020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68629050 (or 68629048 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 13112212223020 its reverse (2032221221131), we get a palindrome (15144433444151).

The spelling of 13112212223020 in words is "thirteen trillion, one hundred twelve billion, two hundred twelve million, two hundred twenty-three thousand, twenty".

Divisors: 1 2 4 5 10 20 41 82 164 205 233 410 466 820 932 1165 2330 4660 9553 19106 38212 47765 95530 191060 68628767 137257534 274515068 343143835 686287670 1372575340 2813779447 5627558894 11255117788 14068897235 15990502711 28137794470 31981005422 56275588940 63962010844 79952513555 159905027110 319810054220 655610611151 1311221222302 2622442444604 3278053055755 6556106111510 13112212223020