22461621231 has 16 divisors (see below), whose sum is σ = 34295840000. Its totient is φ = 12809484288.

The previous prime is 22461621199. The next prime is 22461621241. The reversal of 22461621231 is 13212616422.

It is not a de Polignac number, because 22461621231 - 2⁵ = 22461621199 is a prime.

It is a super-2 number, since 2×22461621231² (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 (22461621241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1061266 + ... + 1082223.

It is an arithmetic number, because the mean of its divisors is an integer number (2143490000).

Almost surely, 2^22461621231 is an apocalyptic number.

22461621231 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

22461621231 is a deficient number, since it is larger than the sum of its proper divisors (11834218769).

22461621231 is a wasteful number, since it uses less digits than its factorization.

22461621231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2143998.

The product of its digits is 6912, while the sum is 30.

The spelling of 22461621231 in words is "twenty-two billion, four hundred sixty-one million, six hundred twenty-one thousand, two hundred thirty-one".