2000221201987 has 16 divisors (see below), whose sum is σ = 2046350718720. Its totient is φ = 1954418854752.

The previous prime is 2000221201973. The next prime is 2000221201999. The reversal of 2000221201987 is 7891021220002.

It is not a de Polignac number, because 2000221201987 - 2⁷ = 2000221201859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2000221201907) 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, 12648468 + ... + 12805630.

It is an arithmetic number, because the mean of its divisors is an integer number (127896919920).

Almost surely, 2^{2000221201987} is an apocalyptic number.

2000221201987 is a deficient number, since it is larger than the sum of its proper divisors (46129516733).

2000221201987 is a wasteful number, since it uses less digits than its factorization.

2000221201987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158202.

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

Adding to 2000221201987 its reverse (7891021220002), we get a palindrome (9891242421989).

The spelling of 2000221201987 in words is "two trillion, two hundred twenty-one million, two hundred one thousand, nine hundred eighty-seven".