113221223251 has 2 divisors, whose sum is σ = 113221223252. Its totient is φ = 113221223250.

The previous prime is 113221223191. The next prime is 113221223267. The reversal of 113221223251 is 152322122311.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 113221223251 - 2⁷ = 113221223123 is a prime.

It is not a weakly prime, because it can be changed into another prime (113221223651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56610611625 + 56610611626.

It is an arithmetic number, because the mean of its divisors is an integer number (56610611626).

Almost surely, 2^113221223251 is an apocalyptic number.

113221223251 is a deficient number, since it is larger than the sum of its proper divisors (1).

113221223251 is an equidigital number, since it uses as much as digits as its factorization.

113221223251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1440, while the sum is 25.

Adding to 113221223251 its reverse (152322122311), we get a palindrome (265543345562).

The spelling of 113221223251 in words is "one hundred thirteen billion, two hundred twenty-one million, two hundred twenty-three thousand, two hundred fifty-one".