22022929 has 2 divisors, whose sum is σ = 22022930. Its totient is φ = 22022928.

The previous prime is 22022921. The next prime is 22022933. The reversal of 22022929 is 92922022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20976400 + 1046529 = 4580^2 + 1023^2 .

It is a cyclic number.

It is not a de Polignac number, because 22022929 - 2³ = 22022921 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22022897 and 22022906.

It is not a weakly prime, because it can be changed into another prime (22022921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11011464 + 11011465.

It is an arithmetic number, because the mean of its divisors is an integer number (11011465).

Almost surely, 2^22022929 is an apocalyptic number.

It is an amenable number.

22022929 is a deficient number, since it is larger than the sum of its proper divisors (1).

22022929 is an equidigital number, since it uses as much as digits as its factorization.

22022929 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 22022929 is about 4692.8593629045. The cubic root of 22022929 is about 280.3012446601.

The spelling of 22022929 in words is "twenty-two million, twenty-two thousand, nine hundred twenty-nine".