200020202000 has 80 divisors (see below), whose sum is σ = 489083540400. Its totient is φ = 79109043200.

The previous prime is 200020201993. The next prime is 200020202021. The reversal of 200020202000 is 202020002.

It can be written as a sum of positive squares in 8 ways, for example, as 54193977616 + 145826224384 = 232796^2 + 381872^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (8).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 383855 + ... + 739854.

It is an arithmetic number, because the mean of its divisors is an integer number (6113544255).

Almost surely, 2^200020202000 is an apocalyptic number.

200020202000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200020202000 is an abundant number, since it is smaller than the sum of its proper divisors (289063338400).

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

200020202000 is a wasteful number, since it uses less digits than its factorization.

200020202000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1123821 (or 1123805 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 8.

Adding to 200020202000 its reverse (202020002), we get a palindrome (200222222002).

The spelling of 200020202000 in words is "two hundred billion, twenty million, two hundred two thousand".