222100220987 has 2 divisors, whose sum is σ = 222100220988. Its totient is φ = 222100220986.

The previous prime is 222100220983. The next prime is 222100221047. The reversal of 222100220987 is 789022001222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 222100220987 - 2² = 222100220983 is a prime.

It is not a weakly prime, because it can be changed into another prime (222100220983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111050110493 + 111050110494.

It is an arithmetic number, because the mean of its divisors is an integer number (111050110494).

Almost surely, 2^222100220987 is an apocalyptic number.

222100220987 is a deficient number, since it is larger than the sum of its proper divisors (1).

222100220987 is an equidigital number, since it uses as much as digits as its factorization.

222100220987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 35.

The spelling of 222100220987 in words is "two hundred twenty-two billion, one hundred million, two hundred twenty thousand, nine hundred eighty-seven".