200020221021 has 16 divisors (see below), whose sum is σ = 273254541120. Its totient is φ = 130074510720.

The previous prime is 200020221013. The next prime is 200020221043. The reversal of 200020221021 is 120122020002.

It is not a de Polignac number, because 200020221021 - 2³ = 200020221013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 200020220988 and 200020221006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200020221421) 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, 920586 + ... + 1116923.

It is an arithmetic number, because the mean of its divisors is an integer number (17078408820).

Almost surely, 2^200020221021 is an apocalyptic number.

It is an amenable number.

200020221021 is a deficient number, since it is larger than the sum of its proper divisors (73234320099).

200020221021 is a wasteful number, since it uses less digits than its factorization.

200020221021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2038316.

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

Adding to 200020221021 its reverse (120122020002), we get a palindrome (320142241023).

The spelling of 200020221021 in words is "two hundred billion, twenty million, two hundred twenty-one thousand, twenty-one".