121026266122081 has 2 divisors, whose sum is σ = 121026266122082. Its totient is φ = 121026266122080.

The previous prime is 121026266122061. The next prime is 121026266122129. The reversal of 121026266122081 is 180221662620121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120652847355681 + 373418766400 = 10984209^2 + 611080^2 .

It is a cyclic number.

It is not a de Polignac number, because 121026266122081 - 2²³ = 121026257733473 is a prime.

It is a super-2 number, since 2×121026266122081² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (121026266122061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60513133061040 + 60513133061041.

It is an arithmetic number, because the mean of its divisors is an integer number (60513133061041).

Almost surely, 2^{121026266122081} is an apocalyptic number.

It is an amenable number.

121026266122081 is a deficient number, since it is larger than the sum of its proper divisors (1).

121026266122081 is an equidigital number, since it uses as much as digits as its factorization.

121026266122081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55296, while the sum is 40.

The spelling of 121026266122081 in words is "one hundred twenty-one trillion, twenty-six billion, two hundred sixty-six million, one hundred twenty-two thousand, eighty-one".