22556202122156 has 12 divisors (see below), whose sum is σ = 40029316442640. Its totient is φ = 11119254567120.

The previous prime is 22556202122149. The next prime is 22556202122197. The reversal of 22556202122156 is 65122120265522.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39711623171 + ... + 39711623738.

It is an arithmetic number, because the mean of its divisors is an integer number (3335776370220).

Almost surely, 2^{22556202122156} is an apocalyptic number.

It is an amenable number.

22556202122156 is a deficient number, since it is larger than the sum of its proper divisors (17473114320484).

22556202122156 is a wasteful number, since it uses less digits than its factorization.

22556202122156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79423246984 (or 79423246982 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 41.

Adding to 22556202122156 its reverse (65122120265522), we get a palindrome (87678322387678).

The spelling of 22556202122156 in words is "twenty-two trillion, five hundred fifty-six billion, two hundred two million, one hundred twenty-two thousand, one hundred fifty-six".