15322242124 has 144 divisors (see below), whose sum is σ = 33886859328. Its totient is φ = 5931035136.

The previous prime is 15322242107. The next prime is 15322242139. The reversal of 15322242124 is 42124222351.

It is a super-2 number, since 2×15322242124² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 15322242092 and 15322242101.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19821402 + ... + 19822174.

It is an arithmetic number, because the mean of its divisors is an integer number (235325412).

Almost surely, 2^15322242124 is an apocalyptic number.

15322242124 is a gapful number since it is divisible by the number (14) 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 15322242124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16943429664).

15322242124 is an abundant number, since it is smaller than the sum of its proper divisors (18564617204).

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

15322242124 is a wasteful number, since it uses less digits than its factorization.

15322242124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 912 (or 891 counting only the distinct ones).

The product of its digits is 7680, while the sum is 28.

Adding to 15322242124 its reverse (42124222351), we get a palindrome (57446464475).

The spelling of 15322242124 in words is "fifteen billion, three hundred twenty-two million, two hundred forty-two thousand, one hundred twenty-four".