122222010099991 has 2 divisors, whose sum is σ = 122222010099992. Its totient is φ = 122222010099990.

The previous prime is 122222010099947. The next prime is 122222010100019. The reversal of 122222010099991 is 199990010222221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122222010099991 - 2⁹ = 122222010099479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122222010090991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61111005049995 + 61111005049996.

It is an arithmetic number, because the mean of its divisors is an integer number (61111005049996).

Almost surely, 2^{122222010099991} is an apocalyptic number.

122222010099991 is a deficient number, since it is larger than the sum of its proper divisors (1).

122222010099991 is an equidigital number, since it uses as much as digits as its factorization.

122222010099991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 209952, while the sum is 49.

The spelling of 122222010099991 in words is "one hundred twenty-two trillion, two hundred twenty-two billion, ten million, ninety-nine thousand, nine hundred ninety-one".