22422621 has 8 divisors (see below), whose sum is σ = 32196640. Its totient is φ = 13798512.

The previous prime is 22422593. The next prime is 22422637. The reversal of 22422621 is 12622422.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22422621 - 2⁶ = 22422557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22422661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 287431 + ... + 287508.

It is an arithmetic number, because the mean of its divisors is an integer number (4024580).

Almost surely, 2^22422621 is an apocalyptic number.

It is an amenable number.

22422621 is a deficient number, since it is larger than the sum of its proper divisors (9774019).

22422621 is a wasteful number, since it uses less digits than its factorization.

22422621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574955.

The product of its digits is 768, while the sum is 21.

The square root of 22422621 is about 4735.2530027444. The cubic root of 22422621 is about 281.9868083966.

The spelling of 22422621 in words is "twenty-two million, four hundred twenty-two thousand, six hundred twenty-one".