122120121091 has 2 divisors, whose sum is σ = 122120121092. Its totient is φ = 122120121090.

The previous prime is 122120121073. The next prime is 122120121113. The reversal of 122120121091 is 190121021221.

It is an a-pointer prime, because the next prime (122120121113) can be obtained adding 122120121091 to its sum of digits (22).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122120121091 - 2⁵ = 122120121059 is a prime.

It is not a weakly prime, because it can be changed into another prime (122120121191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61060060545 + 61060060546.

It is an arithmetic number, because the mean of its divisors is an integer number (61060060546).

Almost surely, 2^122120121091 is an apocalyptic number.

122120121091 is a deficient number, since it is larger than the sum of its proper divisors (1).

122120121091 is an equidigital number, since it uses as much as digits as its factorization.

122120121091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 22.

The spelling of 122120121091 in words is "one hundred twenty-two billion, one hundred twenty million, one hundred twenty-one thousand, ninety-one".