22112977 has 2 divisors, whose sum is σ = 22112978. Its totient is φ = 22112976.

The previous prime is 22112957. The next prime is 22112999. The reversal of 22112977 is 77921122.

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., 20394256 + 1718721 = 4516^2 + 1311^2 .

It is a cyclic number.

It is not a de Polignac number, because 22112977 - 2¹⁵ = 22080209 is a prime.

It is not a weakly prime, because it can be changed into another prime (22112957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11056488 + 11056489.

It is an arithmetic number, because the mean of its divisors is an integer number (11056489).

Almost surely, 2^22112977 is an apocalyptic number.

It is an amenable number.

22112977 is a deficient number, since it is larger than the sum of its proper divisors (1).

22112977 is an equidigital number, since it uses as much as digits as its factorization.

22112977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3528, while the sum is 31.

The square root of 22112977 is about 4702.4437264044. The cubic root of 22112977 is about 280.6827598066.

The spelling of 22112977 in words is "twenty-two million, one hundred twelve thousand, nine hundred seventy-seven".