22042251431 has 8 divisors (see below), whose sum is σ = 22522739904. Its totient is φ = 21562242400.

The previous prime is 22042251373. The next prime is 22042251509. The reversal of 22042251431 is 13415224022.

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

It is a cyclic number.

It is not a de Polignac number, because 22042251431 - 2¹⁸ = 22041989287 is a prime.

It is a super-2 number, since 2×22042251431² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22042251431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22042251031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26120 + ... + 211581.

It is an arithmetic number, because the mean of its divisors is an integer number (2815342488).

Almost surely, 2^22042251431 is an apocalyptic number.

22042251431 is a deficient number, since it is larger than the sum of its proper divisors (480488473).

22042251431 is a wasteful number, since it uses less digits than its factorization.

22042251431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239721.

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 22042251431 its reverse (13415224022), we get a palindrome (35457475453).

The spelling of 22042251431 in words is "twenty-two billion, forty-two million, two hundred fifty-one thousand, four hundred thirty-one".