1112219987 has 2 divisors, whose sum is σ = 1112219988. Its totient is φ = 1112219986.

The previous prime is 1112219981. The next prime is 1112220017. The reversal of 1112219987 is 7899122111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1112219987 - 2¹⁰ = 1112218963 is a prime.

It is not a weakly prime, because it can be changed into another prime (1112219981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556109993 + 556109994.

It is an arithmetic number, because the mean of its divisors is an integer number (556109994).

Almost surely, 2^1112219987 is an apocalyptic number.

1112219987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1112219987 is an equidigital number, since it uses as much as digits as its factorization.

1112219987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 41.

The square root of 1112219987 is about 33349.9623238168. The cubic root of 1112219987 is about 1036.0886076154.

The spelling of 1112219987 in words is "one billion, one hundred twelve million, two hundred nineteen thousand, nine hundred eighty-seven".