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222131102122 = 21913742668287
BaseRepresentation
bin1100111011100000001…
…0111010000110101010
3210020100200212011021101
43032320002322012222
512114411030231442
6250013504232014
722022421133426
oct3167002720652
9706320764241
10222131102122
1186229241846
123707330b60a
1317c40384487
14aa7342bb86
155ba134ccb7
hex33b80ba1aa

222131102122 has 16 divisors (see below), whose sum is σ = 353293424640. Its totient is φ = 104451964128.

The previous prime is 222131102117. The next prime is 222131102147. The reversal of 222131102122 is 221201131222.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 222131102122.

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, 21328938 + ... + 21339349.

It is an arithmetic number, because the mean of its divisors is an integer number (22080839040).

Almost surely, 2222131102122 is an apocalyptic number.

222131102122 is a deficient number, since it is larger than the sum of its proper divisors (131162322518).

222131102122 is a wasteful number, since it uses less digits than its factorization.

222131102122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42668445.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 222131102122 its reverse (221201131222), we get a palindrome (443332233344).

The spelling of 222131102122 in words is "two hundred twenty-two billion, one hundred thirty-one million, one hundred two thousand, one hundred twenty-two".

Divisors: 1 2 19 38 137 274 2603 5206 42668287 85336574 810697453 1621394906 5845555319 11691110638 111065551061 222131102122