122160191 has 4 divisors (see below), whose sum is σ = 124759392. Its totient is φ = 119560992.

The previous prime is 122160179. The next prime is 122160193. The reversal of 122160191 is 191061221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 122160191 - 2⁶ = 122160127 is a prime.

It is a super-2 number, since 2×122160191² = 29846224530312962, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122160193) 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, 1299530 + ... + 1299623.

It is an arithmetic number, because the mean of its divisors is an integer number (31189848).

Almost surely, 2^122160191 is an apocalyptic number.

122160191 is a deficient number, since it is larger than the sum of its proper divisors (2599201).

122160191 is an equidigital number, since it uses as much as digits as its factorization.

122160191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2599200.

The product of its (nonzero) digits is 216, while the sum is 23.

The square root of 122160191 is about 11052.6101442148. The cubic root of 122160191 is about 496.1845466910.

The spelling of 122160191 in words is "one hundred twenty-two million, one hundred sixty thousand, one hundred ninety-one".