200020202120 has 32 divisors (see below), whose sum is σ = 450523802520. Its totient is φ = 79923041280.

The previous prime is 200020202113. The next prime is 200020202143. The reversal of 200020202120 is 21202020002.

It can be written as a sum of positive squares in 4 ways, for example, as 146948022244 + 53072179876 = 383338^2 + 230374^2 .

It is a super-2 number, since 2×200020202120² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2619377 + ... + 2694656.

Almost surely, 2^200020202120 is an apocalyptic number.

200020202120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200020202120 is an abundant number, since it is smaller than the sum of its proper divisors (250503600400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

200020202120 is a wasteful number, since it uses less digits than its factorization.

200020202120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5314985 (or 5314981 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

Adding to 200020202120 its reverse (21202020002), we get a palindrome (221222222122).

The spelling of 200020202120 in words is "two hundred billion, twenty million, two hundred two thousand, one hundred twenty".