22400401031 has 4 divisors (see below), whose sum is σ = 22441352952. Its totient is φ = 22359449112.

The previous prime is 22400401021. The next prime is 22400401039. The reversal of 22400401031 is 13010400422.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13010400422 = 2 ⋅6505200211.

It is a cyclic number.

It is not a de Polignac number, because 22400401031 - 2²² = 22396206727 is a prime.

It is a super-2 number, since 2×22400401031² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22400401039) 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, 20475140 + ... + 20476233.

It is an arithmetic number, because the mean of its divisors is an integer number (5610338238).

Almost surely, 2^22400401031 is an apocalyptic number.

22400401031 is a deficient number, since it is larger than the sum of its proper divisors (40951921).

22400401031 is an equidigital number, since it uses as much as digits as its factorization.

22400401031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40951920.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 22400401031 its reverse (13010400422), we get a palindrome (35410801453).

The spelling of 22400401031 in words is "twenty-two billion, four hundred million, four hundred one thousand, thirty-one".