15131225224412 has 12 divisors (see below), whose sum is σ = 28886884519416. Its totient is φ = 6877829647440.

The previous prime is 15131225224403. The next prime is 15131225224429. The reversal of 15131225224412 is 21442252213151.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171945741143 + ... + 171945741230.

It is an arithmetic number, because the mean of its divisors is an integer number (2407240376618).

Almost surely, 2^{15131225224412} is an apocalyptic number.

It is an amenable number.

15131225224412 is a deficient number, since it is larger than the sum of its proper divisors (13755659295004).

15131225224412 is a wasteful number, since it uses less digits than its factorization.

15131225224412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343891482388 (or 343891482386 counting only the distinct ones).

The product of its digits is 38400, while the sum is 35.

Adding to 15131225224412 its reverse (21442252213151), we get a palindrome (36573477437563).

The spelling of 15131225224412 in words is "fifteen trillion, one hundred thirty-one billion, two hundred twenty-five million, two hundred twenty-four thousand, four hundred twelve".