22013422431 has 288 divisors, whose sum is σ = 43363805184. Its totient is φ = 9819532800.

The previous prime is 22013422427. The next prime is 22013422447. The reversal of 22013422431 is 13422431022.

It is a happy number.

It is not a de Polignac number, because 22013422431 - 2² = 22013422427 is a prime.

It is a super-2 number, since 2×22013422431² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22013422421) by changing a digit.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 265221916 + ... + 265221998.

It is an arithmetic number, because the mean of its divisors is an integer number (150568768).

Almost surely, 2^22013422431 is an apocalyptic number.

22013422431 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

22013422431 is a deficient number, since it is larger than the sum of its proper divisors (21350382753).

22013422431 is a wasteful number, since it uses less digits than its factorization.

22013422431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203 (or 185 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 22013422431 its reverse (13422431022), we get a palindrome (35435853453).

It can be divided in two parts, 22013 and 422431, that added together give a palindrome (444444).

The spelling of 22013422431 in words is "twenty-two billion, thirteen million, four hundred twenty-two thousand, four hundred thirty-one".