422822636221 has 4 divisors (see below), whose sum is σ = 445076459200. Its totient is φ = 400568813244.

The previous prime is 422822636177. The next prime is 422822636227. The reversal of 422822636221 is 122636228224.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 422822636221 - 2³³ = 414232701629 is a prime.

It is a super-2 number, since 2×422822636221² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422822636227) 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, 11126911461 + ... + 11126911498.

It is an arithmetic number, because the mean of its divisors is an integer number (111269114800).

Almost surely, 2^422822636221 is an apocalyptic number.

It is an amenable number.

422822636221 is a deficient number, since it is larger than the sum of its proper divisors (22253822979).

422822636221 is a wasteful number, since it uses less digits than its factorization.

422822636221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22253822978.

The product of its digits is 221184, while the sum is 40.

The spelling of 422822636221 in words is "four hundred twenty-two billion, eight hundred twenty-two million, six hundred thirty-six thousand, two hundred twenty-one".