2001200220987 has 8 divisors (see below), whose sum is σ = 2910836685120. Its totient is φ = 1212848618760.

The previous prime is 2001200220973. The next prime is 2001200221043. The reversal of 2001200220987 is 7890220021002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2001200220987 - 2²⁰ = 2001199172411 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 60642430939 = 2001200220987 / (2 + 0 + 0 + 1 + 2 + 0 + 0 + 2 + 2 + 0 + 9 + 8 + 7).

It is not an unprimeable number, because it can be changed into a prime (2001200220917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30321215437 + ... + 30321215502.

It is an arithmetic number, because the mean of its divisors is an integer number (363854585640).

Almost surely, 2^{2001200220987} is an apocalyptic number.

2001200220987 is a deficient number, since it is larger than the sum of its proper divisors (909636464133).

2001200220987 is a wasteful number, since it uses less digits than its factorization.

2001200220987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60642430953.

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

Adding to 2001200220987 its reverse (7890220021002), we get a palindrome (9891420241989).

The spelling of 2001200220987 in words is "two trillion, one billion, two hundred million, two hundred twenty thousand, nine hundred eighty-seven".