200020221987 has 8 divisors (see below), whose sum is σ = 282381489936. Its totient is φ = 125502884352.

The previous prime is 200020221943. The next prime is 200020221991. The reversal of 200020221987 is 789122020002.

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

It is not a de Polignac number, because 200020221987 - 2¹⁴ = 200020205603 is a prime.

It is not an unprimeable number, because it can be changed into a prime (200020221287) 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, 1960982518 + ... + 1960982619.

It is an arithmetic number, because the mean of its divisors is an integer number (35297686242).

Almost surely, 2^200020221987 is an apocalyptic number.

200020221987 is a deficient number, since it is larger than the sum of its proper divisors (82361267949).

200020221987 is a wasteful number, since it uses less digits than its factorization.

200020221987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3921965157.

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

Adding to 200020221987 its reverse (789122020002), we get a palindrome (989142241989).

The spelling of 200020221987 in words is "two hundred billion, twenty million, two hundred twenty-one thousand, nine hundred eighty-seven".