222727197857 has 2 divisors, whose sum is σ = 222727197858. Its totient is φ = 222727197856.

The previous prime is 222727197851. The next prime is 222727197883. The reversal of 222727197857 is 758791727222.

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., 173414777761 + 49312420096 = 416431^2 + 222064^2 .

It is a cyclic number.

It is not a de Polignac number, because 222727197857 - 2⁸ = 222727197601 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 222727197796 and 222727197805.

It is not a weakly prime, because it can be changed into another prime (222727197851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111363598928 + 111363598929.

It is an arithmetic number, because the mean of its divisors is an integer number (111363598929).

Almost surely, 2^222727197857 is an apocalyptic number.

It is an amenable number.

222727197857 is a deficient number, since it is larger than the sum of its proper divisors (1).

222727197857 is an equidigital number, since it uses as much as digits as its factorization.

222727197857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13829760, while the sum is 59.

The spelling of 222727197857 in words is "two hundred twenty-two billion, seven hundred twenty-seven million, one hundred ninety-seven thousand, eight hundred fifty-seven".