222222100201987 has 2 divisors, whose sum is σ = 222222100201988. Its totient is φ = 222222100201986.

The previous prime is 222222100201973. The next prime is 222222100202191. The reversal of 222222100201987 is 789102001222222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 222222100201987 - 2⁷ = 222222100201859 is a prime.

It is not a weakly prime, because it can be changed into another prime (222222100201187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111111050100993 + 111111050100994.

It is an arithmetic number, because the mean of its divisors is an integer number (111111050100994).

Almost surely, 2^{222222100201987} is an apocalyptic number.

222222100201987 is a deficient number, since it is larger than the sum of its proper divisors (1).

222222100201987 is an equidigital number, since it uses as much as digits as its factorization.

222222100201987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64512, while the sum is 40.

The spelling of 222222100201987 in words is "two hundred twenty-two trillion, two hundred twenty-two billion, one hundred million, two hundred one thousand, nine hundred eighty-seven".