22022199977 has 2 divisors, whose sum is σ = 22022199978. Its totient is φ = 22022199976.

The previous prime is 22022199937. The next prime is 22022200037. The reversal of 22022199977 is 77999122022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21627820096 + 394379881 = 147064^2 + 19859^2 .

It is a cyclic number.

It is not a de Polignac number, because 22022199977 - 2¹⁴ = 22022183593 is a prime.

It is not a weakly prime, because it can be changed into another prime (22022199937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11011099988 + 11011099989.

It is an arithmetic number, because the mean of its divisors is an integer number (11011099989).

Almost surely, 2^22022199977 is an apocalyptic number.

It is an amenable number.

22022199977 is a deficient number, since it is larger than the sum of its proper divisors (1).

22022199977 is an equidigital number, since it uses as much as digits as its factorization.

22022199977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 571536, while the sum is 50.

The spelling of 22022199977 in words is "twenty-two billion, twenty-two million, one hundred ninety-nine thousand, nine hundred seventy-seven".