22232332921 has 2 divisors, whose sum is σ = 22232332922. Its totient is φ = 22232332920.

The previous prime is 22232332919. The next prime is 22232333047. The reversal of 22232332921 is 12923323222.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22122397696 + 109935225 = 148736^2 + 10485^2 .

It is a cyclic number.

It is not a de Polignac number, because 22232332921 - 2¹ = 22232332919 is a prime.

It is a super-2 number, since 2×22232332921² (a number of 21 digits) contains 22 as substring.

Together with 22232332919, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (22232330921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11116166460 + 11116166461.

It is an arithmetic number, because the mean of its divisors is an integer number (11116166461).

Almost surely, 2^22232332921 is an apocalyptic number.

It is an amenable number.

22232332921 is a deficient number, since it is larger than the sum of its proper divisors (1).

22232332921 is an equidigital number, since it uses as much as digits as its factorization.

22232332921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 31.

The spelling of 22232332921 in words is "twenty-two billion, two hundred thirty-two million, three hundred thirty-two thousand, nine hundred twenty-one".