11122022121961 has 2 divisors, whose sum is σ = 11122022121962. Its totient is φ = 11122022121960.

The previous prime is 11122022121943. The next prime is 11122022121989. The reversal of 11122022121961 is 16912122022111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10978990663936 + 143031458025 = 3313456^2 + 378195^2 .

It is a cyclic number.

It is not a de Polignac number, because 11122022121961 - 2²¹ = 11122020024809 is a prime.

It is not a weakly prime, because it can be changed into another prime (11122022121361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5561011060980 + 5561011060981.

It is an arithmetic number, because the mean of its divisors is an integer number (5561011060981).

Almost surely, 2^{11122022121961} is an apocalyptic number.

It is an amenable number.

11122022121961 is a deficient number, since it is larger than the sum of its proper divisors (1).

11122022121961 is an equidigital number, since it uses as much as digits as its factorization.

11122022121961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 31.

The spelling of 11122022121961 in words is "eleven trillion, one hundred twenty-two billion, twenty-two million, one hundred twenty-one thousand, nine hundred sixty-one".