121246222491 has 8 divisors (see below), whose sum is σ = 179624033360. Its totient is φ = 80830814976.

The previous prime is 121246222459. The next prime is 121246222547. The reversal of 121246222491 is 194222642121.

121246222491 is a `hidden beast` number, since 1 + 2 + 1 + 2 + 4 + 622 + 24 + 9 + 1 = 666.

It is not a de Polignac number, because 121246222491 - 2⁵ = 121246222459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121246229491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2245300390 + ... + 2245300443.

It is an arithmetic number, because the mean of its divisors is an integer number (22453004170).

Almost surely, 2^121246222491 is an apocalyptic number.

121246222491 is a deficient number, since it is larger than the sum of its proper divisors (58377810869).

121246222491 is an equidigital number, since it uses as much as digits as its factorization.

121246222491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4490600842 (or 4490600836 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The spelling of 121246222491 in words is "one hundred twenty-one billion, two hundred forty-six million, two hundred twenty-two thousand, four hundred ninety-one".