102201200001987 has 16 divisors (see below), whose sum is σ = 142193329936128. Its totient is φ = 65171616535520.

The previous prime is 102201200001949. The next prime is 102201200001997. The reversal of 102201200001987 is 789100002102201.

It is a cyclic number.

It is not a de Polignac number, because 102201200001987 - 2¹⁸ = 102201199739843 is a prime.

It is a super-2 number, since 2×102201200001987² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102201200001917) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29788453 + ... + 33041705.

It is an arithmetic number, because the mean of its divisors is an integer number (8887083121008).

Almost surely, 2^{102201200001987} is an apocalyptic number.

102201200001987 is a deficient number, since it is larger than the sum of its proper divisors (39992129934141).

102201200001987 is a wasteful number, since it uses less digits than its factorization.

102201200001987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3708570.

The product of its (nonzero) digits is 4032, while the sum is 33.

The spelling of 102201200001987 in words is "one hundred two trillion, two hundred one billion, two hundred million, one thousand, nine hundred eighty-seven".