20221626631 has 4 divisors (see below), whose sum is σ = 20222037000. Its totient is φ = 20221216264.

The previous prime is 20221626619. The next prime is 20221626637. The reversal of 20221626631 is 13662612202.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13662612202 = 2 ⋅6831306101.

It is a cyclic number.

It is not a de Polignac number, because 20221626631 - 2²⁵ = 20188072199 is a prime.

It is a super-2 number, since 2×20221626631² (a number of 21 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 = 20221626593 and 20221626602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20221626637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119281 + ... + 233818.

It is an arithmetic number, because the mean of its divisors is an integer number (5055509250).

Almost surely, 2^20221626631 is an apocalyptic number.

20221626631 is a deficient number, since it is larger than the sum of its proper divisors (410369).

20221626631 is an equidigital number, since it uses as much as digits as its factorization.

20221626631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410368.

The product of its (nonzero) digits is 10368, while the sum is 31.

The spelling of 20221626631 in words is "twenty billion, two hundred twenty-one million, six hundred twenty-six thousand, six hundred thirty-one".