200020222021 has 16 divisors (see below), whose sum is σ = 213437706480. Its totient is φ = 186789657600.

The previous prime is 200020222007. The next prime is 200020222069. The reversal of 200020222021 is 120222020002.

It can be written as a sum of positive squares in 8 ways, for example, as 22286309796 + 177733912225 = 149286^2 + 421585^2 .

It is a cyclic number.

It is not a de Polignac number, because 200020222021 - 2⁹ = 200020221509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200020221992 and 200020222010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200020222001) 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, 1839471 + ... + 1945171.

It is an arithmetic number, because the mean of its divisors is an integer number (13339856655).

Almost surely, 2^200020222021 is an apocalyptic number.

It is an amenable number.

200020222021 is a deficient number, since it is larger than the sum of its proper divisors (13417484459).

200020222021 is a wasteful number, since it uses less digits than its factorization.

200020222021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106584.

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 200020222021 its reverse (120222020002), we get a palindrome (320242242023).

The spelling of 200020222021 in words is "two hundred billion, twenty million, two hundred twenty-two thousand, twenty-one".