2120012013120 has 56 divisors (see below), whose sum is σ = 6731038144704. Its totient is φ = 565336536576.

The previous prime is 2120012013037. The next prime is 2120012013121. The reversal of 2120012013120 is 213102100212.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 2120012013120.

It is not an unprimeable number, because it can be changed into a prime (2120012013121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1104171964 + ... + 1104173883.

Almost surely, 2^{2120012013120} is an apocalyptic number.

2120012013120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2120012013120 is an abundant number, since it is smaller than the sum of its proper divisors (4611026131584).

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

2120012013120 is a wasteful number, since it uses less digits than its factorization.

2120012013120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2208345867 (or 2208345857 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 2120012013120 its reverse (213102100212), we get a palindrome (2333114113332).

The spelling of 2120012013120 in words is "two trillion, one hundred twenty billion, twelve million, thirteen thousand, one hundred twenty".