120012220091 has 2 divisors, whose sum is σ = 120012220092. Its totient is φ = 120012220090.

The previous prime is 120012220061. The next prime is 120012220127. The reversal of 120012220091 is 190022210021.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 120012220091 - 2²⁶ = 119945111227 is a prime.

It is not a weakly prime, because it can be changed into another prime (120012220021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60006110045 + 60006110046.

It is an arithmetic number, because the mean of its divisors is an integer number (60006110046).

Almost surely, 2^120012220091 is an apocalyptic number.

120012220091 is a deficient number, since it is larger than the sum of its proper divisors (1).

120012220091 is an equidigital number, since it uses as much as digits as its factorization.

120012220091 is an odious number, because the sum of its binary digits is odd.

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

The spelling of 120012220091 in words is "one hundred twenty billion, twelve million, two hundred twenty thousand, ninety-one".