22156031210 has 8 divisors (see below), whose sum is σ = 39880856196. Its totient is φ = 8862412480.

The previous prime is 22156031153. The next prime is 22156031243. The reversal of 22156031210 is 1213065122.

It can be written as a sum of positive squares in 2 ways, for example, as 21728823649 + 427207561 = 147407^2 + 20669^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 1107801551 + ... + 1107801570.

Almost surely, 2^22156031210 is an apocalyptic number.

22156031210 is a deficient number, since it is larger than the sum of its proper divisors (17724824986).

22156031210 is a wasteful number, since it uses less digits than its factorization.

22156031210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2215603128.

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 22156031210 its reverse (1213065122), we get a palindrome (23369096332).

The spelling of 22156031210 in words is "twenty-two billion, one hundred fifty-six million, thirty-one thousand, two hundred ten".