22155512522 has 32 divisors (see below), whose sum is σ = 39071894400. Its totient is φ = 9289206720.

The previous prime is 22155512507. The next prime is 22155512557. The reversal of 22155512522 is 22521555122.

It is a super-2 number, since 2×22155512522² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 372428 + ... + 427800.

It is an arithmetic number, because the mean of its divisors is an integer number (1220996700).

Almost surely, 2^22155512522 is an apocalyptic number.

22155512522 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22155512522 is a deficient number, since it is larger than the sum of its proper divisors (16916381878).

22155512522 is a wasteful number, since it uses less digits than its factorization.

22155512522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56798.

The product of its digits is 20000, while the sum is 32.

The spelling of 22155512522 in words is "twenty-two billion, one hundred fifty-five million, five hundred twelve thousand, five hundred twenty-two".