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10222112222 = 27912779999
BaseRepresentation
bin10011000010100100…
…10000110111011110
3222101101201002210222
421201102100313132
5131413330042342
64410155201342
7511212343310
oct114122206736
928341632728
1010222112222
114376130233
121b93446252
13c6ba1741a
146cd85d7b0
153ec633ed2
hex261490dde

10222112222 has 16 divisors (see below), whose sum is σ = 17525760000. Its totient is φ = 4380370488.

The previous prime is 10222112209. The next prime is 10222112231. The reversal of 10222112222 is 22221122201.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 10222112222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87779 + ... + 167777.

It is an arithmetic number, because the mean of its divisors is an integer number (1095360000).

Almost surely, 210222112222 is an apocalyptic number.

10222112222 is a deficient number, since it is larger than the sum of its proper divisors (7303647778).

10222112222 is an equidigital number, since it uses as much as digits as its factorization.

10222112222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89135.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 10222112222 its reverse (22221122201), we get a palindrome (32443234423).

The spelling of 10222112222 in words is "ten billion, two hundred twenty-two million, one hundred twelve thousand, two hundred twenty-two".

Divisors: 1 2 7 14 9127 18254 63889 79999 127778 159998 559993 1119986 730150873 1460301746 5111056111 10222112222