10020020202 has 24 divisors (see below), whose sum is σ = 22458667140. Its totient is φ = 3224833920.

The previous prime is 10020020161. The next prime is 10020020203. The reversal of 10020020202 is 20202002001.

It can be written as a sum of positive squares in 2 ways, for example, as 9802782081 + 217238121 = 99009^2 + 14739^2 .

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

10020020202 is a modest number, since divided by 20202 gives 10020 as remainder.

It is not an unprimeable number, because it can be changed into a prime (10020020203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9597199 + ... + 9598242.

Almost surely, 2^10020020202 is an apocalyptic number.

10020020202 is an abundant number, since it is smaller than the sum of its proper divisors (12438646938).

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

10020020202 is a wasteful number, since it uses less digits than its factorization.

10020020202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19195478 (or 19195475 counting only the distinct ones).

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

Adding to 10020020202 its reverse (20202002001), we get a palindrome (30222022203).

The spelling of 10020020202 in words is "ten billion, twenty million, twenty thousand, two hundred two".