200221200021 has 16 divisors (see below), whose sum is σ = 268570403136. Its totient is φ = 132676776576.

The previous prime is 200221200013. The next prime is 200221200131. The reversal of 200221200021 is 120002122002.

It is not a de Polignac number, because 200221200021 - 2³ = 200221200013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200221200721) 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, 2177841 + ... + 2267913.

It is an arithmetic number, because the mean of its divisors is an integer number (16785650196).

Almost surely, 2^200221200021 is an apocalyptic number.

It is an amenable number.

200221200021 is a deficient number, since it is larger than the sum of its proper divisors (68349203115).

200221200021 is a wasteful number, since it uses less digits than its factorization.

200221200021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94532.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 200221200021 its reverse (120002122002), we get a palindrome (320223322023).

The spelling of 200221200021 in words is "two hundred billion, two hundred twenty-one million, two hundred thousand, twenty-one".