121256622601 has 4 divisors (see below), whose sum is σ = 121264253712. Its totient is φ = 121248991492.

The previous prime is 121256622581. The next prime is 121256622623. The reversal of 121256622601 is 106226652121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 121256622601 - 2²⁹ = 120719751689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121256622631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3791671 + ... + 3823516.

It is an arithmetic number, because the mean of its divisors is an integer number (30316063428).

Almost surely, 2^121256622601 is an apocalyptic number.

It is an amenable number.

121256622601 is a deficient number, since it is larger than the sum of its proper divisors (7631111).

121256622601 is an equidigital number, since it uses as much as digits as its factorization.

121256622601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7631110.

The product of its (nonzero) digits is 17280, while the sum is 34.

The spelling of 121256622601 in words is "one hundred twenty-one billion, two hundred fifty-six million, six hundred twenty-two thousand, six hundred one".