220002110521987 has 2 divisors, whose sum is σ = 220002110521988. Its totient is φ = 220002110521986.

The previous prime is 220002110521859. The next prime is 220002110522021. The reversal of 220002110521987 is 789125011200022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 220002110521987 - 2⁷ = 220002110521859 is a prime.

It is a super-2 number, since 2×220002110521987² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (220002110527987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110001055260993 + 110001055260994.

It is an arithmetic number, because the mean of its divisors is an integer number (110001055260994).

Almost surely, 2^{220002110521987} is an apocalyptic number.

220002110521987 is a deficient number, since it is larger than the sum of its proper divisors (1).

220002110521987 is an equidigital number, since it uses as much as digits as its factorization.

220002110521987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 40.

The spelling of 220002110521987 in words is "two hundred twenty trillion, two billion, one hundred ten million, five hundred twenty-one thousand, nine hundred eighty-seven".