2020200021987 has 32 divisors (see below), whose sum is σ = 3262314921984. Its totient is φ = 1085549952000.

The previous prime is 2020200021971. The next prime is 2020200021997. The reversal of 2020200021987 is 7891200020202.

It is not a de Polignac number, because 2020200021987 - 2⁴ = 2020200021971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2020200021997) 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, 2047314 + ... + 2869127.

It is an arithmetic number, because the mean of its divisors is an integer number (101947341312).

Almost surely, 2^{2020200021987} is an apocalyptic number.

2020200021987 is a deficient number, since it is larger than the sum of its proper divisors (1242114899997).

2020200021987 is a wasteful number, since it uses less digits than its factorization.

2020200021987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4917619.

The product of its (nonzero) digits is 8064, while the sum is 33.

The spelling of 2020200021987 in words is "two trillion, twenty billion, two hundred million, twenty-one thousand, nine hundred eighty-seven".