22156422060 has 24 divisors (see below), whose sum is σ = 62037981936. Its totient is φ = 5908379200.

The previous prime is 22156422059. The next prime is 22156422073. The reversal of 22156422060 is 6022465122.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 184636791 + ... + 184636910.

It is an arithmetic number, because the mean of its divisors is an integer number (2584915914).

Almost surely, 2^22156422060 is an apocalyptic number.

22156422060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22156422060 is an abundant number, since it is smaller than the sum of its proper divisors (39881559876).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22156422060 is a wasteful number, since it uses less digits than its factorization.

22156422060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369273713 (or 369273711 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 22156422060 its reverse (6022465122), we get a palindrome (28178887182).

The spelling of 22156422060 in words is "twenty-two billion, one hundred fifty-six million, four hundred twenty-two thousand, sixty".