122745413121 has 4 divisors (see below), whose sum is σ = 163660550832. Its totient is φ = 81830275412.

The previous prime is 122745413059. The next prime is 122745413143. The reversal of 122745413121 is 121314547221.

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 122745413121 - 2⁶ = 122745413057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122745413321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20457568851 + ... + 20457568856.

It is an arithmetic number, because the mean of its divisors is an integer number (40915137708).

Almost surely, 2^122745413121 is an apocalyptic number.

It is an amenable number.

122745413121 is a deficient number, since it is larger than the sum of its proper divisors (40915137711).

122745413121 is an equidigital number, since it uses as much as digits as its factorization.

122745413121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40915137710.

The product of its digits is 13440, while the sum is 33.

The spelling of 122745413121 in words is "one hundred twenty-two billion, seven hundred forty-five million, four hundred thirteen thousand, one hundred twenty-one".