222772309781869 has 2 divisors, whose sum is σ = 222772309781870. Its totient is φ = 222772309781868.

The previous prime is 222772309781837. The next prime is 222772309781873. The reversal of 222772309781869 is 968187903277222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 152209588155625 + 70562721626244 = 12337325^2 + 8400162^2 .

It is a cyclic number.

It is not a de Polignac number, because 222772309781869 - 2⁵ = 222772309781837 is a prime.

It is a super-2 number, since 2×222772309781869² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222772339781869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111386154890934 + 111386154890935.

It is an arithmetic number, because the mean of its divisors is an integer number (111386154890935).

Almost surely, 2^{222772309781869} is an apocalyptic number.

It is an amenable number.

222772309781869 is a deficient number, since it is larger than the sum of its proper divisors (1).

222772309781869 is an equidigital number, since it uses as much as digits as its factorization.

222772309781869 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 512096256, while the sum is 73.

The spelling of 222772309781869 in words is "two hundred twenty-two trillion, seven hundred seventy-two billion, three hundred nine million, seven hundred eighty-one thousand, eight hundred sixty-nine".