202102211987 has 32 divisors (see below), whose sum is σ = 232392815424. Its totient is φ = 174104985600.

The previous prime is 202102211981. The next prime is 202102211989. The reversal of 202102211987 is 789112201202.

202102211987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 202102211987 - 2²⁸ = 201833776531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202102211981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 58392437 + ... + 58395897.

It is an arithmetic number, because the mean of its divisors is an integer number (7262275482).

Almost surely, 2^202102211987 is an apocalyptic number.

202102211987 is a deficient number, since it is larger than the sum of its proper divisors (30290603437).

202102211987 is a wasteful number, since it uses less digits than its factorization.

202102211987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5639.

The product of its (nonzero) digits is 8064, while the sum is 35.

The spelling of 202102211987 in words is "two hundred two billion, one hundred two million, two hundred eleven thousand, nine hundred eighty-seven".