122122112221091 has 2 divisors, whose sum is σ = 122122112221092. Its totient is φ = 122122112221090.

The previous prime is 122122112221069. The next prime is 122122112221121. The reversal of 122122112221091 is 190122211221221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122122112221091 - 2⁶ = 122122112221027 is a prime.

It is not a weakly prime, because it can be changed into another prime (122122112221051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61061056110545 + 61061056110546.

It is an arithmetic number, because the mean of its divisors is an integer number (61061056110546).

Almost surely, 2^{122122112221091} is an apocalyptic number.

122122112221091 is a deficient number, since it is larger than the sum of its proper divisors (1).

122122112221091 is an equidigital number, since it uses as much as digits as its factorization.

122122112221091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 29.

The spelling of 122122112221091 in words is "one hundred twenty-two trillion, one hundred twenty-two billion, one hundred twelve million, two hundred twenty-one thousand, ninety-one".