202120334420 has 48 divisors (see below), whose sum is σ = 431819942400. Its totient is φ = 79445950080.

The previous prime is 202120334413. The next prime is 202120334477. The reversal of 202120334420 is 24433021202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3024326 + ... + 3090434.

It is an arithmetic number, because the mean of its divisors is an integer number (8996248800).

Almost surely, 2^202120334420 is an apocalyptic number.

202120334420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202120334420 is an abundant number, since it is smaller than the sum of its proper divisors (229699607980).

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

202120334420 is a wasteful number, since it uses less digits than its factorization.

202120334420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68768 (or 68766 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 202120334420 its reverse (24433021202), we get a palindrome (226553355622).

The spelling of 202120334420 in words is "two hundred two billion, one hundred twenty million, three hundred thirty-four thousand, four hundred twenty".