122110102091 has 4 divisors (see below), whose sum is σ = 123482125800. Its totient is φ = 120738078384.

The previous prime is 122110102069. The next prime is 122110102099. The reversal of 122110102091 is 190201011221.

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 122110102091 - 2⁶ = 122110102027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122110102099) 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, 686011721 + ... + 686011898.

It is an arithmetic number, because the mean of its divisors is an integer number (30870531450).

Almost surely, 2^122110102091 is an apocalyptic number.

122110102091 is a deficient number, since it is larger than the sum of its proper divisors (1372023709).

122110102091 is an equidigital number, since it uses as much as digits as its factorization.

122110102091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1372023708.

The product of its (nonzero) digits is 72, while the sum is 20.

The spelling of 122110102091 in words is "one hundred twenty-two billion, one hundred ten million, one hundred two thousand, ninety-one".