2021120200987 has 32 divisors (see below), whose sum is σ = 2089666252800. Its totient is φ = 1954031136000.

The previous prime is 2021120200963. The next prime is 2021120200991. The reversal of 2021120200987 is 7890020211202.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2021120200987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2021120200997) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 724674189 + ... + 724676977.

It is an arithmetic number, because the mean of its divisors is an integer number (65302070400).

Almost surely, 2^{2021120200987} is an apocalyptic number.

2021120200987 is a deficient number, since it is larger than the sum of its proper divisors (68546051813).

2021120200987 is a wasteful number, since it uses less digits than its factorization.

2021120200987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3747.

The product of its (nonzero) digits is 8064, while the sum is 34.

The spelling of 2021120200987 in words is "two trillion, twenty-one billion, one hundred twenty million, two hundred thousand, nine hundred eighty-seven".