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12021202122 = 2310987720959
BaseRepresentation
bin10110011001000010…
…01111110011001010
31011000210000100012020
423030201033303022
5144104411431442
65304504025310
7603616350336
oct131441176312
934023010166
1012021202122
115109723096
1223b5a62236
131197679167
1482077a7c6
154a555c9ec
hex2cc84fcca

12021202122 has 32 divisors (see below), whose sum is σ = 24291801600. Its totient is φ = 3965588928.

The previous prime is 12021202111. The next prime is 12021202147. The reversal of 12021202122 is 22120212021.

12021202122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 563079 + ... + 584037.

It is an arithmetic number, because the mean of its divisors is an integer number (759118800).

Almost surely, 212021202122 is an apocalyptic number.

12021202122 is an abundant number, since it is smaller than the sum of its proper divisors (12270599478).

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

12021202122 is a wasteful number, since it uses less digits than its factorization.

12021202122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21950.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 12021202122 its reverse (22120212021), we get a palindrome (34141414143).

It can be divided in two parts, 120212021 and 22, that multiplied together give a palindrome (2644664462).

The spelling of 12021202122 in words is "twelve billion, twenty-one million, two hundred two thousand, one hundred twenty-two".

Divisors: 1 2 3 6 109 218 327 654 877 1754 2631 5262 20959 41918 62877 95593 125754 191186 286779 573558 2284531 4569062 6853593 13707186 18381043 36762086 55143129 110286258 2003533687 4007067374 6010601061 12021202122