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12020212120122 = 2331734013208691
BaseRepresentation
bin1010111011101010110001…
…1110010011101000111010
31120120010021020202012011000
42232322230132103220322
53033414343300320442
641322001553545430
72350301030133303
oct256725436235072
946503236665130
1012020212120122
11391481a414908
121421720875276
1369266900638b
142d7ad211d7aa
1515ca175dbd4c
hexaeeac793a3a

12020212120122 has 64 divisors (see below), whose sum is σ = 26932990561920. Its totient is φ = 3973641696000.

The previous prime is 12020212120109. The next prime is 12020212120153. The reversal of 12020212120122 is 22102121202021.

It is a happy number.

12020212120122 is a `hidden beast` number, since 120 + 202 + 121 + 201 + 22 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12020212120095 and 12020212120104.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2141797 + ... + 5350487.

It is an arithmetic number, because the mean of its divisors is an integer number (420827977530).

Almost surely, 212020212120122 is an apocalyptic number.

12020212120122 is an abundant number, since it is smaller than the sum of its proper divisors (14912778441798).

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

12020212120122 is a wasteful number, since it uses less digits than its factorization.

12020212120122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3209276 (or 3209270 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 12020212120122 its reverse (22102121202021), we get a palindrome (34122333322143).

The spelling of 12020212120122 in words is "twelve trillion, twenty billion, two hundred twelve million, one hundred twenty thousand, one hundred twenty-two".

Divisors: 1 2 3 6 9 18 27 54 173 346 401 519 802 1038 1203 1557 2406 3114 3609 4671 7218 9342 10827 21654 69373 138746 208119 416238 624357 1248714 1873071 3208691 3746142 6417382 9626073 19252146 28878219 57756438 86634657 173269314 555103543 1110207086 1286685091 1665310629 2573370182 3330621258 3860055273 4995931887 7720110546 9991863774 11580165819 14987795661 23160331638 29975591322 34740497457 69480994914 222596520743 445193041486 667789562229 1335579124458 2003368686687 4006737373374 6010106060061 12020212120122