122106625261 has 4 divisors (see below), whose sum is σ = 127415608992. Its totient is φ = 116797641532.

The previous prime is 122106625231. The next prime is 122106625297. The reversal of 122106625261 is 162526601221.

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 122106625261 - 2⁵ = 122106625229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122106625231) 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 in 3 ways as a sum of consecutive naturals, for example, 2654491831 + ... + 2654491876.

It is an arithmetic number, because the mean of its divisors is an integer number (31853902248).

Almost surely, 2^122106625261 is an apocalyptic number.

It is an amenable number.

122106625261 is a deficient number, since it is larger than the sum of its proper divisors (5308983731).

122106625261 is an equidigital number, since it uses as much as digits as its factorization.

122106625261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5308983730.

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

The spelling of 122106625261 in words is "one hundred twenty-two billion, one hundred six million, six hundred twenty-five thousand, two hundred sixty-one".