202113303220 has 24 divisors (see below), whose sum is σ = 424446409800. Its totient is φ = 80843707392.

The previous prime is 202113303193. The next prime is 202113303241. The reversal of 202113303220 is 22303311202.

It can be written as a sum of positive squares in 4 ways, for example, as 8368956324 + 193744346896 = 91482^2 + 440164^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1796796 + ... + 1905964.

It is an arithmetic number, because the mean of its divisors is an integer number (17685267075).

Almost surely, 2^202113303220 is an apocalyptic number.

202113303220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202113303220 is an abundant number, since it is smaller than the sum of its proper divisors (222333106580).

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

202113303220 is a wasteful number, since it uses less digits than its factorization.

202113303220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201747 (or 201745 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 202113303220 its reverse (22303311202), we get a palindrome (224416614422).

The spelling of 202113303220 in words is "two hundred two billion, one hundred thirteen million, three hundred three thousand, two hundred twenty".