112366661221 has 2 divisors, whose sum is σ = 112366661222. Its totient is φ = 112366661220.

The previous prime is 112366661189. The next prime is 112366661227. The reversal of 112366661221 is 122166663211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 93016460196 + 19350201025 = 304986^2 + 139105^2 .

It is a cyclic number.

It is not a de Polignac number, because 112366661221 - 2⁵ = 112366661189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112366661227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56183330610 + 56183330611.

It is an arithmetic number, because the mean of its divisors is an integer number (56183330611).

Almost surely, 2^112366661221 is an apocalyptic number.

It is an amenable number.

112366661221 is a deficient number, since it is larger than the sum of its proper divisors (1).

112366661221 is an equidigital number, since it uses as much as digits as its factorization.

112366661221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 37.

The spelling of 112366661221 in words is "one hundred twelve billion, three hundred sixty-six million, six hundred sixty-one thousand, two hundred twenty-one".