22432230665621 has 6 divisors (see below), whose sum is σ = 26094635672310. Its totient is φ = 19227626284776.

The previous prime is 22432230665609. The next prime is 22432230665671. The reversal of 22432230665621 is 12656603223422.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 13419686297521 + 9012544368100 = 3663289^2 + 3002090^2 .

It is not a de Polignac number, because 22432230665621 - 2⁴² = 18034184154517 is a prime.

It is a super-2 number, since 2×22432230665621² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22432230665671) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 228900312866 + ... + 228900312963.

It is an arithmetic number, because the mean of its divisors is an integer number (4349105945385).

Almost surely, 2^{22432230665621} is an apocalyptic number.

It is an amenable number.

22432230665621 is a deficient number, since it is larger than the sum of its proper divisors (3662405006689).

22432230665621 is an equidigital number, since it uses as much as digits as its factorization.

22432230665621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457800625843 (or 457800625836 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 44.

The spelling of 22432230665621 in words is "twenty-two trillion, four hundred thirty-two billion, two hundred thirty million, six hundred sixty-five thousand, six hundred twenty-one".