122102020091 has 8 divisors (see below), whose sum is σ = 125096399568. Its totient is φ = 119108416000.

The previous prime is 122102020069. The next prime is 122102020097. The reversal of 122102020091 is 190020201221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122102020091 - 2²⁶ = 122034911227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122102020097) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131576 + ... + 511386.

It is an arithmetic number, because the mean of its divisors is an integer number (15637049946).

Almost surely, 2^122102020091 is an apocalyptic number.

122102020091 is a deficient number, since it is larger than the sum of its proper divisors (2994379477).

122102020091 is an equidigital number, since it uses as much as digits as its factorization.

122102020091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387693.

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

The spelling of 122102020091 in words is "one hundred twenty-two billion, one hundred two million, twenty thousand, ninety-one".