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12212011200020 = 2251932136871579
BaseRepresentation
bin1011000110110101010010…
…0101101110111000010100
31121020110100001112222011212
42301231110211232320110
53100040144331400040
641550042005520552
72400201010331252
oct261552445567024
947213301488155
1012212011200020
1139890a2a57395
121452929a13158
136a77842953b8
143030c8d955d2
151629e0ac8d65
hexb1b5496ee14

12212011200020 has 24 divisors (see below), whose sum is σ = 26994972127200. Its totient is φ = 4627709507232.

The previous prime is 12212011199981. The next prime is 12212011200029. The reversal of 12212011200020 is 2000211021221.

12212011200020 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 = 12212011199968 and 12212011200004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212011200029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16068435410 + ... + 16068436169.

It is an arithmetic number, because the mean of its divisors is an integer number (1124790505300).

Almost surely, 212212011200020 is an apocalyptic number.

12212011200020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12212011200020 is an abundant number, since it is smaller than the sum of its proper divisors (14782960927180).

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

12212011200020 is a wasteful number, since it uses less digits than its factorization.

12212011200020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32136871607 (or 32136871605 counting only the distinct ones).

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

Adding to 12212011200020 its reverse (2000211021221), we get a palindrome (14212222221241).

The spelling of 12212011200020 in words is "twelve trillion, two hundred twelve billion, eleven million, two hundred thousand, twenty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 32136871579 64273743158 128547486316 160684357895 321368715790 610600560001 642737431580 1221201120002 2442402240004 3053002800005 6106005600010 12212011200020