220112491 has 2 divisors, whose sum is σ = 220112492. Its totient is φ = 220112490.

The previous prime is 220112483. The next prime is 220112521. The reversal of 220112491 is 194211022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 220112491 - 2³ = 220112483 is a prime.

It is not a weakly prime, because it can be changed into another prime (220112591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110056245 + 110056246.

It is an arithmetic number, because the mean of its divisors is an integer number (110056246).

Almost surely, 2^220112491 is an apocalyptic number.

220112491 is a deficient number, since it is larger than the sum of its proper divisors (1).

220112491 is an equidigital number, since it uses as much as digits as its factorization.

220112491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 220112491 is about 14836.1885604086. The cubic root of 220112491 is about 603.7839480987.

The spelling of 220112491 in words is "two hundred twenty million, one hundred twelve thousand, four hundred ninety-one".