200020100202 has 48 divisors (see below), whose sum is σ = 468650270088. Its totient is φ = 61289256960.

The previous prime is 200020100173. The next prime is 200020100251. The reversal of 200020100202 is 202001020002.

It can be written as a sum of positive squares in 4 ways, for example, as 186813263961 + 13206836241 = 432219^2 + 114921^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1717023 + ... + 1829810.

Almost surely, 2^200020100202 is an apocalyptic number.

200020100202 is an abundant number, since it is smaller than the sum of its proper divisors (268630169886).

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

200020100202 is a wasteful number, since it uses less digits than its factorization.

200020100202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3547095 (or 3547092 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

Adding to 200020100202 its reverse (202001020002), we get a palindrome (402021120204).

The spelling of 200020100202 in words is "two hundred billion, twenty million, one hundred thousand, two hundred two".