212650672075081 has 2 divisors, whose sum is σ = 212650672075082. Its totient is φ = 212650672075080.

The previous prime is 212650672075069. The next prime is 212650672075099. The reversal of 212650672075081 is 180570276056212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 203929966964025 + 8720705111056 = 14280405^2 + 2953084^2 .

It is a cyclic number.

It is not a de Polignac number, because 212650672075081 - 2²³ = 212650663686473 is a prime.

It is a super-2 number, since 2×212650672075081² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (212650672075381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106325336037540 + 106325336037541.

It is an arithmetic number, because the mean of its divisors is an integer number (106325336037541).

Almost surely, 2^{212650672075081} is an apocalyptic number.

It is an amenable number.

212650672075081 is a deficient number, since it is larger than the sum of its proper divisors (1).

212650672075081 is an equidigital number, since it uses as much as digits as its factorization.

212650672075081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2822400, while the sum is 52.

The spelling of 212650672075081 in words is "two hundred twelve trillion, six hundred fifty billion, six hundred seventy-two million, seventy-five thousand, eighty-one".