222112108987 has 2 divisors, whose sum is σ = 222112108988. Its totient is φ = 222112108986.

The previous prime is 222112108963. The next prime is 222112109027. The reversal of 222112108987 is 789801211222.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222112108987 is a prime.

It is not a weakly prime, because it can be changed into another prime (222112108937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111056054493 + 111056054494.

It is an arithmetic number, because the mean of its divisors is an integer number (111056054494).

Almost surely, 2^222112108987 is an apocalyptic number.

222112108987 is a deficient number, since it is larger than the sum of its proper divisors (1).

222112108987 is an equidigital number, since it uses as much as digits as its factorization.

222112108987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64512, while the sum is 43.

The spelling of 222112108987 in words is "two hundred twenty-two billion, one hundred twelve million, one hundred eight thousand, nine hundred eighty-seven".