112211987 has 2 divisors, whose sum is σ = 112211988. Its totient is φ = 112211986.

The previous prime is 112211969. The next prime is 112211999. The reversal of 112211987 is 789112211.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112211987 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (112411987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56105993 + 56105994.

It is an arithmetic number, because the mean of its divisors is an integer number (56105994).

Almost surely, 2^112211987 is an apocalyptic number.

112211987 is a deficient number, since it is larger than the sum of its proper divisors (1).

112211987 is an equidigital number, since it uses as much as digits as its factorization.

112211987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2016, while the sum is 32.

The square root of 112211987 is about 10593.0159539198. The cubic root of 112211987 is about 482.3323795142.

The spelling of 112211987 in words is "one hundred twelve million, two hundred eleven thousand, nine hundred eighty-seven".