22421124621 has 32 divisors (see below), whose sum is σ = 37970592000. Its totient is φ = 12809067840.

The previous prime is 22421124587. The next prime is 22421124623. The reversal of 22421124621 is 12642112422.

It is a happy number.

22421124621 is a `hidden beast` number, since 2 + 2 + 4 + 2 + 11 + 24 + 621 = 666.

It is not a de Polignac number, because 22421124621 - 2²² = 22416930317 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22421124623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 983055 + ... + 1005603.

It is an arithmetic number, because the mean of its divisors is an integer number (1186581000).

Almost surely, 2^22421124621 is an apocalyptic number.

22421124621 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

22421124621 is a deficient number, since it is larger than the sum of its proper divisors (15549467379).

22421124621 is a wasteful number, since it uses less digits than its factorization.

22421124621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27826 (or 27820 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

It can be divided in two parts, 224211 and 24621, that added together give a 5-th power (248832 = 12⁵).

The spelling of 22421124621 in words is "twenty-two billion, four hundred twenty-one million, one hundred twenty-four thousand, six hundred twenty-one".