202002021220100 has 36 divisors (see below), whose sum is σ = 438873149057700. Its totient is φ = 80703340652160.

The previous prime is 202002021219961. The next prime is 202002021220141. The reversal of 202002021220100 is 1022120200202.

It can be written as a sum of positive squares in 6 ways, for example, as 104294118916 + 201897727101184 = 322946^2 + 14209072^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1218264635 + ... + 1218430434.

Almost surely, 2^{202002021220100} is an apocalyptic number.

202002021220100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202002021220100 is an abundant number, since it is smaller than the sum of its proper divisors (236871127837600).

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

202002021220100 is a wasteful number, since it uses less digits than its factorization.

202002021220100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2436695912 (or 2436695905 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 202002021220100 its reverse (1022120200202), we get a palindrome (203024141420302).

The spelling of 202002021220100 in words is "two hundred two trillion, two billion, twenty-one million, two hundred twenty thousand, one hundred".