121200122159 has 2 divisors, whose sum is σ = 121200122160. Its totient is φ = 121200122158.

The previous prime is 121200122117. The next prime is 121200122207. The reversal of 121200122159 is 951221002121.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121200122159 is a prime.

It is a super-2 number, since 2×121200122159² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121400122159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60600061079 + 60600061080.

It is an arithmetic number, because the mean of its divisors is an integer number (60600061080).

Almost surely, 2^121200122159 is an apocalyptic number.

121200122159 is a deficient number, since it is larger than the sum of its proper divisors (1).

121200122159 is an equidigital number, since it uses as much as digits as its factorization.

121200122159 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 26.

The spelling of 121200122159 in words is "one hundred twenty-one billion, two hundred million, one hundred twenty-two thousand, one hundred fifty-nine".