202020020010100 has 72 divisors (see below), whose sum is σ = 447591414191040. Its totient is φ = 79127917908480.

The previous prime is 202020020010091. The next prime is 202020020010113. The reversal of 202020020010100 is 1010020020202.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 106760160 + ... + 108635959.

It is an arithmetic number, because the mean of its divisors is an integer number (6216547419320).

Almost surely, 2^{202020020010100} is an apocalyptic number.

202020020010100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202020020010100 is an abundant number, since it is smaller than the sum of its proper divisors (245571394180940).

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

202020020010100 is a wasteful number, since it uses less digits than its factorization.

202020020010100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215396329 (or 215396322 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 202020020010100 its reverse (1010020020202), we get a palindrome (203030040030302).

The spelling of 202020020010100 in words is "two hundred two trillion, twenty billion, twenty million, ten thousand, one hundred".