22105104272 has 10 divisors (see below), whose sum is σ = 42828639558. Its totient is φ = 11052552128.

The previous prime is 22105104257. The next prime is 22105104323. The reversal of 22105104272 is 27240150122.

It can be written as a sum of positive squares in only one way, i.e., 15396839056 + 6708265216 = 124084^2 + 81904^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 690784493 + ... + 690784524.

Almost surely, 2^22105104272 is an apocalyptic number.

It is an amenable number.

22105104272 is a deficient number, since it is larger than the sum of its proper divisors (20723535286).

22105104272 is a wasteful number, since it uses less digits than its factorization.

22105104272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1381569025 (or 1381569019 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 26.

Adding to 22105104272 its reverse (27240150122), we get a palindrome (49345254394).

The spelling of 22105104272 in words is "twenty-two billion, one hundred five million, one hundred four thousand, two hundred seventy-two".