120001222091 has 4 divisors (see below), whose sum is σ = 120010905000. Its totient is φ = 119991539184.

The previous prime is 120001222079. The next prime is 120001222111. The reversal of 120001222091 is 190222100021.

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 120001222091 - 2²⁶ = 119934113227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120001222001) 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, 4822841 + ... + 4847658.

It is an arithmetic number, because the mean of its divisors is an integer number (30002726250).

Almost surely, 2^120001222091 is an apocalyptic number.

120001222091 is a deficient number, since it is larger than the sum of its proper divisors (9682909).

120001222091 is an equidigital number, since it uses as much as digits as its factorization.

120001222091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9682908.

The product of its (nonzero) digits is 144, while the sum is 20.

The spelling of 120001222091 in words is "one hundred twenty billion, one million, two hundred twenty-two thousand, ninety-one".