20100200202 has 12 divisors (see below), whose sum is σ = 43550433810. Its totient is φ = 6700066728.

The previous prime is 20100200173. The next prime is 20100200249. The reversal of 20100200202 is 20200200102.

It can be written as a sum of positive squares in only one way, i.e., 18963768681 + 1136431521 = 137709^2 + 33711^2 .

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 5 ways as a sum of consecutive naturals, for example, 558338877 + ... + 558338912.

Almost surely, 2^20100200202 is an apocalyptic number.

20100200202 is an abundant number, since it is smaller than the sum of its proper divisors (23450233608).

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

20100200202 is a wasteful number, since it uses less digits than its factorization.

20100200202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1116677797 (or 1116677794 counting only the distinct ones).

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

Adding to 20100200202 its reverse (20200200102), we get a palindrome (40300400304).

The spelling of 20100200202 in words is "twenty billion, one hundred million, two hundred thousand, two hundred two".