22090000031 has 32 divisors (see below), whose sum is σ = 25659348480. Its totient is φ = 18829641600.

The previous prime is 22090000027. The next prime is 22090000043. The reversal of 22090000031 is 13000009022.

It is not a de Polignac number, because 22090000031 - 2² = 22090000027 is a prime.

It is a super-2 number, since 2×22090000031² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22089999964 and 22090000009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22090000061) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1510205 + ... + 1524761.

It is an arithmetic number, because the mean of its divisors is an integer number (801854640).

Almost surely, 2^22090000031 is an apocalyptic number.

22090000031 is the 79445-th centered heptagonal number.

22090000031 is a deficient number, since it is larger than the sum of its proper divisors (3569348449).

22090000031 is a wasteful number, since it uses less digits than its factorization.

22090000031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14735.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 22090000031 its reverse (13000009022), we get a palindrome (35090009053).

The spelling of 22090000031 in words is "twenty-two billion, ninety million, thirty-one", and thus it is an aban number and an uban number.