22424421631 has 4 divisors (see below), whose sum is σ = 22426879672. Its totient is φ = 22421963592.

The previous prime is 22424421589. The next prime is 22424421641. The reversal of 22424421631 is 13612442422.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22424421631 is a prime.

It is a super-2 number, since 2×22424421631² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22424421593 and 22424421602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22424421641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1215285 + ... + 1233598.

It is an arithmetic number, because the mean of its divisors is an integer number (5606719918).

Almost surely, 2^22424421631 is an apocalyptic number.

22424421631 is a deficient number, since it is larger than the sum of its proper divisors (2458041).

22424421631 is an equidigital number, since it uses as much as digits as its factorization.

22424421631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2458040.

The product of its digits is 18432, while the sum is 31.

The spelling of 22424421631 in words is "twenty-two billion, four hundred twenty-four million, four hundred twenty-one thousand, six hundred thirty-one".