12990120 has 128 divisors (see below), whose sum is σ = 45843840. Its totient is φ = 2903040.

The previous prime is 12990119. The next prime is 12990127. The reversal of 12990120 is 2109921.

It is a super-2 number, since 2×12990120² = 337486435228800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12990127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16782 + ... + 17538.

It is an arithmetic number, because the mean of its divisors is an integer number (358155).

Almost surely, 2^12990120 is an apocalyptic number.

12990120 is a gapful number since it is divisible by the number (10) 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 12990120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22921920).

12990120 is an abundant number, since it is smaller than the sum of its proper divisors (32853720).

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

12990120 is a wasteful number, since it uses less digits than its factorization.

12990120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 795 (or 791 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 24.

The square root of 12990120 is about 3604.1809055595. The cubic root of 12990120 is about 235.0738865299.

It can be divided in two parts, 129901 and 20, that added together give a palindrome (129921).

The spelling of 12990120 in words is "twelve million, nine hundred ninety thousand, one hundred twenty".