2122131172 has 12 divisors (see below), whose sum is σ = 4244262400. Its totient is φ = 909484776.

The previous prime is 2122131157. The next prime is 2122131191. The reversal of 2122131172 is 2711312212.

2122131172 is an admirable number.

It is a super-2 number, since 2×2122131172² = 9006881422348187168, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37895172 + ... + 37895227.

Almost surely, 2^2122131172 is an apocalyptic number.

It is an amenable number.

2122131172 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2122131172 is a wasteful number, since it uses less digits than its factorization.

2122131172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75790410 (or 75790408 counting only the distinct ones).

The product of its digits is 336, while the sum is 22.

The square root of 2122131172 is about 46066.5949685887. The cubic root of 2122131172 is about 1285.0619806892.

Adding to 2122131172 its reverse (2711312212), we get a palindrome (4833443384).

The spelling of 2122131172 in words is "two billion, one hundred twenty-two million, one hundred thirty-one thousand, one hundred seventy-two".