200020202220021 has 16 divisors (see below), whose sum is σ = 266867221805568. Its totient is φ = 133259994518000.

The previous prime is 200020202220011. The next prime is 200020202220071. The reversal of 200020202220021 is 120022202020002.

It is a cyclic number.

It is not a de Polignac number, because 200020202220021 - 2⁵ = 200020202219989 is a prime.

It is a super-2 number, since 2×200020202220021² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200020202220011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 374185480 + ... + 374719646.

It is an arithmetic number, because the mean of its divisors is an integer number (16679201362848).

Almost surely, 2^{200020202220021} is an apocalyptic number.

It is an amenable number.

200020202220021 is a deficient number, since it is larger than the sum of its proper divisors (66847019585547).

200020202220021 is a wasteful number, since it uses less digits than its factorization.

200020202220021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615192.

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 200020202220021 its reverse (120022202020002), we get a palindrome (320042404240023).

The spelling of 200020202220021 in words is "two hundred trillion, twenty billion, two hundred two million, two hundred twenty thousand, twenty-one".