22332021 has 8 divisors (see below), whose sum is σ = 29815584. Its totient is φ = 14868240.

The previous prime is 22331993. The next prime is 22332041. The reversal of 22332021 is 12023322.

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

It is not a de Polignac number, because 22332021 - 2¹¹ = 22329973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22332041) 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, 2071 + ... + 6996.

It is an arithmetic number, because the mean of its divisors is an integer number (3726948).

Almost surely, 2^22332021 is an apocalyptic number.

It is an amenable number.

22332021 is a deficient number, since it is larger than the sum of its proper divisors (7483563).

22332021 is an equidigital number, since it uses as much as digits as its factorization.

22332021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9891.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 22332021 is about 4725.6767769284. The cubic root of 22332021 is about 281.6065006153.

Adding to 22332021 its reverse (12023322), we get a palindrome (34355343).

The spelling of 22332021 in words is "twenty-two million, three hundred thirty-two thousand, twenty-one".