2520100120 has 32 divisors (see below), whose sum is σ = 5682409200. Its totient is φ = 1005874048.

The previous prime is 2520100091. The next prime is 2520100151. The reversal of 2520100120 is 210010252.

It is a super-2 number, since 2×2520100120² = 12701809229648028800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2520100120.

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, 48775 + ... + 86134.

Almost surely, 2^2520100120 is an apocalyptic number.

2520100120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2520100120 is an abundant number, since it is smaller than the sum of its proper divisors (3162309080).

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

2520100120 is a wasteful number, since it uses less digits than its factorization.

2520100120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135387 (or 135383 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 2520100120 is about 50200.5988012095. The cubic root of 2520100120 is about 1360.8364447960.

Adding to 2520100120 its reverse (210010252), we get a palindrome (2730110372).

The spelling of 2520100120 in words is "two billion, five hundred twenty million, one hundred thousand, one hundred twenty".