220112199991 has 2 divisors, whose sum is σ = 220112199992. Its totient is φ = 220112199990.

The previous prime is 220112199947. The next prime is 220112200003. The reversal of 220112199991 is 199991211022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 220112199991 - 2⁷ = 220112199863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220112199491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110056099995 + 110056099996.

It is an arithmetic number, because the mean of its divisors is an integer number (110056099996).

Almost surely, 2^220112199991 is an apocalyptic number.

220112199991 is a deficient number, since it is larger than the sum of its proper divisors (1).

220112199991 is an equidigital number, since it uses as much as digits as its factorization.

220112199991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52488, while the sum is 46.

The spelling of 220112199991 in words is "two hundred twenty billion, one hundred twelve million, one hundred ninety-nine thousand, nine hundred ninety-one".