22010009977 has 2 divisors, whose sum is σ = 22010009978. Its totient is φ = 22010009976.

The previous prime is 22010009929. The next prime is 22010009981. The reversal of 22010009977 is 77990001022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20548935801 + 1461074176 = 143349^2 + 38224^2 .

It is a cyclic number.

It is not a de Polignac number, because 22010009977 - 2²⁷ = 21875792249 is a prime.

It is not a weakly prime, because it can be changed into another prime (22010039977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11005004988 + 11005004989.

It is an arithmetic number, because the mean of its divisors is an integer number (11005004989).

Almost surely, 2^22010009977 is an apocalyptic number.

It is an amenable number.

22010009977 is a deficient number, since it is larger than the sum of its proper divisors (1).

22010009977 is an equidigital number, since it uses as much as digits as its factorization.

22010009977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15876, while the sum is 37.

The spelling of 22010009977 in words is "twenty-two billion, ten million, nine thousand, nine hundred seventy-seven".