202012200010100 has 18 divisors (see below), whose sum is σ = 438366474022134. Its totient is φ = 80804880004000.

The previous prime is 202012200010091. The next prime is 202012200010121. The reversal of 202012200010100 is 1010002210202.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 47199180867556 + 154813019142544 = 6870166^2 + 12442388^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1010060999951 + ... + 1010061000150.

Almost surely, 2^{202012200010100} is an apocalyptic number.

202012200010100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202012200010100 is an abundant number, since it is smaller than the sum of its proper divisors (236354274012034).

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

202012200010100 is a wasteful number, since it uses less digits than its factorization.

202012200010100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2020122000115 (or 2020122000108 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 202012200010100 its reverse (1010002210202), we get a palindrome (203022202220302).

The spelling of 202012200010100 in words is "two hundred two trillion, twelve billion, two hundred million, ten thousand, one hundred".