22232120021 has 8 divisors (see below), whose sum is σ = 23069559744. Its totient is φ = 21409244640.

The previous prime is 22232120017. The next prime is 22232120051. The reversal of 22232120021 is 12002123222.

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

It is a cyclic number.

It is not a de Polignac number, because 22232120021 - 2² = 22232120017 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 (22232120011) 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, 3637976 + ... + 3644081.

It is an arithmetic number, because the mean of its divisors is an integer number (2883694968).

Almost surely, 2^22232120021 is an apocalyptic number.

It is an amenable number.

22232120021 is a deficient number, since it is larger than the sum of its proper divisors (837439723).

22232120021 is an equidigital number, since it uses as much as digits as its factorization.

22232120021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7282171.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 22232120021 its reverse (12002123222), we get a palindrome (34234243243).

The spelling of 22232120021 in words is "twenty-two billion, two hundred thirty-two million, one hundred twenty thousand, twenty-one".