200202021020 has 24 divisors (see below), whose sum is σ = 420820541568. Its totient is φ = 80005323200.

The previous prime is 200202020989. The next prime is 200202021037. The reversal of 200202021020 is 20120202002.

It is a junction number, because it is equal to n+sod(n) for n = 200202020992 and 200202021010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4696076 + ... + 4738515.

It is an arithmetic number, because the mean of its divisors is an integer number (17534189232).

Almost surely, 2^200202021020 is an apocalyptic number.

200202021020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200202021020 is an abundant number, since it is smaller than the sum of its proper divisors (220618520548).

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

200202021020 is a wasteful number, since it uses less digits than its factorization.

200202021020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9435661 (or 9435659 counting only the distinct ones).

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

Adding to 200202021020 its reverse (20120202002), we get a palindrome (220322223022).

The spelling of 200202021020 in words is "two hundred billion, two hundred two million, twenty-one thousand, twenty".