222523990849889 has 2 divisors, whose sum is σ = 222523990849890. Its totient is φ = 222523990849888.

The previous prime is 222523990849873. The next prime is 222523990849903. The reversal of 222523990849889 is 988948099325222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 155536641073489 + 66987349776400 = 12471433^2 + 8184580^2 .

It is a cyclic number.

It is not a de Polignac number, because 222523990849889 - 2⁴ = 222523990849873 is a prime.

It is a super-2 number, since 2×222523990849889² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (222523990840889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111261995424944 + 111261995424945.

It is an arithmetic number, because the mean of its divisors is an integer number (111261995424945).

Almost surely, 2^{222523990849889} is an apocalyptic number.

It is an amenable number.

222523990849889 is a deficient number, since it is larger than the sum of its proper divisors (1).

222523990849889 is an equidigital number, since it uses as much as digits as its factorization.

222523990849889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3224862720, while the sum is 80.

The spelling of 222523990849889 in words is "two hundred twenty-two trillion, five hundred twenty-three billion, nine hundred ninety million, eight hundred forty-nine thousand, eight hundred eighty-nine".