122120199965 has 16 divisors (see below), whose sum is σ = 150516662400. Its totient is φ = 95048291520.

The previous prime is 122120199913. The next prime is 122120199989. The reversal of 122120199965 is 569991021221.

It is a happy number.

It is not a de Polignac number, because 122120199965 - 2²⁰ = 122119151389 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4314710 + ... + 4342920.

It is an arithmetic number, because the mean of its divisors is an integer number (9407291400).

Almost surely, 2^122120199965 is an apocalyptic number.

It is an amenable number.

122120199965 is a deficient number, since it is larger than the sum of its proper divisors (28396462435).

122120199965 is a wasteful number, since it uses less digits than its factorization.

122120199965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51652.

The product of its (nonzero) digits is 174960, while the sum is 47.

The spelling of 122120199965 in words is "one hundred twenty-two billion, one hundred twenty million, one hundred ninety-nine thousand, nine hundred sixty-five".