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20122210122 = 237736563017
BaseRepresentation
bin10010101111011000…
…001000111101001010
31220221100111012000120
4102233120020331022
5312202241210442
613124412444110
71311434651430
oct225730107512
956840435016
1020122210122
118596510323
123a96a79636
131b88ac6811
14d8c618d50
157cb85b4ec
hex4af608f4a

20122210122 has 32 divisors (see below), whose sum is σ = 46623679872. Its totient is φ = 5670445824.

The previous prime is 20122210109. The next prime is 20122210183. The reversal of 20122210122 is 22101222102.

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, 3278443 + ... + 3284574.

It is an arithmetic number, because the mean of its divisors is an integer number (1456989996).

Almost surely, 220122210122 is an apocalyptic number.

20122210122 is an abundant number, since it is smaller than the sum of its proper divisors (26501469750).

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

20122210122 is a wasteful number, since it uses less digits than its factorization.

20122210122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6563102.

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

Adding to 20122210122 its reverse (22101222102), we get a palindrome (42223432224).

The spelling of 20122210122 in words is "twenty billion, one hundred twenty-two million, two hundred ten thousand, one hundred twenty-two".

Divisors: 1 2 3 6 7 14 21 42 73 146 219 438 511 1022 1533 3066 6563017 13126034 19689051 39378102 45941119 91882238 137823357 275646714 479100241 958200482 1437300723 2874601446 3353701687 6707403374 10061105061 20122210122