2520220120 has 128 divisors (see below), whose sum is σ = 6314112000. Its totient is φ = 897684480.

The previous prime is 2520220111. The next prime is 2520220151. The reversal of 2520220120 is 210220252.

It is a junction number, because it is equal to n+sod(n) for n = 2520220094 and 2520220103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5443009 + ... + 5443471.

It is an arithmetic number, because the mean of its divisors is an integer number (49329000).

Almost surely, 2^2520220120 is an apocalyptic number.

2520220120 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 2520220120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3157056000).

2520220120 is an abundant number, since it is smaller than the sum of its proper divisors (3793891880).

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

2520220120 is a wasteful number, since it uses less digits than its factorization.

2520220120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713 (or 709 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 2520220120 is about 50201.7939918485. The cubic root of 2520220120 is about 1360.8580441735.

Adding to 2520220120 its reverse (210220252), we get a palindrome (2730440372).

The spelling of 2520220120 in words is "two billion, five hundred twenty million, two hundred twenty thousand, one hundred twenty".