122211120491 has 2 divisors, whose sum is σ = 122211120492. Its totient is φ = 122211120490.

The previous prime is 122211120487. The next prime is 122211120571. The reversal of 122211120491 is 194021112221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122211120491 - 2² = 122211120487 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122211120491.

It is not a weakly prime, because it can be changed into another prime (122211120431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61105560245 + 61105560246.

It is an arithmetic number, because the mean of its divisors is an integer number (61105560246).

Almost surely, 2^122211120491 is an apocalyptic number.

122211120491 is a deficient number, since it is larger than the sum of its proper divisors (1).

122211120491 is an equidigital number, since it uses as much as digits as its factorization.

122211120491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 26.

The spelling of 122211120491 in words is "one hundred twenty-two billion, two hundred eleven million, one hundred twenty thousand, four hundred ninety-one".