202020120 has 96 divisors (see below), whose sum is σ = 672628320. Its totient is φ = 52554240.

The previous prime is 202020113. The next prime is 202020131. The reversal of 202020120 is 21020202.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7917 + ... + 21603.

It is an arithmetic number, because the mean of its divisors is an integer number (7006545).

Almost surely, 2^202020120 is an apocalyptic number.

202020120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 202020120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (336314160).

202020120 is an abundant number, since it is smaller than the sum of its proper divisors (470608200).

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

202020120 is a wasteful number, since it uses less digits than its factorization.

202020120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13745 (or 13738 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 202020120 is about 14213.3782050574. The cubic root of 202020120 is about 586.7659109536.

Adding to 202020120 its reverse (21020202), we get a palindrome (223040322).

The spelling of 202020120 in words is "two hundred two million, twenty thousand, one hundred twenty".