22077255197 has 2 divisors, whose sum is σ = 22077255198. Its totient is φ = 22077255196.

The previous prime is 22077255163. The next prime is 22077255217. The reversal of 22077255197 is 79155277022.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21020940196 + 1056315001 = 144986^2 + 32501^2 .

It is a cyclic number.

It is not a de Polignac number, because 22077255197 - 2¹² = 22077251101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22077255097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11038627598 + 11038627599.

It is an arithmetic number, because the mean of its divisors is an integer number (11038627599).

Almost surely, 2^22077255197 is an apocalyptic number.

It is an amenable number.

22077255197 is a deficient number, since it is larger than the sum of its proper divisors (1).

22077255197 is an equidigital number, since it uses as much as digits as its factorization.

22077255197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 617400, while the sum is 47.

The spelling of 22077255197 in words is "twenty-two billion, seventy-seven million, two hundred fifty-five thousand, one hundred ninety-seven".