15122132120000 has 70 divisors (see below), whose sum is σ = 37497973063848. Its totient is φ = 6048852832000.

The previous prime is 15122132119999. The next prime is 15122132120041. The reversal of 15122132120000 is 2123122151.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 188986652 + ... + 189066651.

Almost surely, 2^{15122132120000} is an apocalyptic number.

15122132120000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15122132120000 is an abundant number, since it is smaller than the sum of its proper divisors (22375840943848).

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

15122132120000 is an frugal number, since it uses more digits than its factorization.

15122132120000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378053335 (or 378053310 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

Adding to 15122132120000 its reverse (2123122151), we get a palindrome (15124255242151).

The spelling of 15122132120000 in words is "fifteen trillion, one hundred twenty-two billion, one hundred thirty-two million, one hundred twenty thousand".