22181036156 has 12 divisors (see below), whose sum is σ = 39122458368. Its totient is φ = 11003190912.

The previous prime is 22181036153. The next prime is 22181036173. The reversal of 22181036156 is 65163018122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22181036153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21831221 + ... + 21832236.

It is an arithmetic number, because the mean of its divisors is an integer number (3260204864).

Almost surely, 2^22181036156 is an apocalyptic number.

It is an amenable number.

22181036156 is a deficient number, since it is larger than the sum of its proper divisors (16941422212).

22181036156 is a wasteful number, since it uses less digits than its factorization.

22181036156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43663588 (or 43663586 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The spelling of 22181036156 in words is "twenty-two billion, one hundred eighty-one million, thirty-six thousand, one hundred fifty-six".