15253221120 has 72 divisors (see below), whose sum is σ = 48714987216. Its totient is φ = 4067524608.

The previous prime is 15253221119. The next prime is 15253221127. The reversal of 15253221120 is 2112235251.

It is a super-2 number, since 2×15253221120² (a number of 21 digits) 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 (15253221127) 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, 1982257 + ... + 1989936.

Almost surely, 2^15253221120 is an apocalyptic number.

15253221120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15253221120 is an abundant number, since it is smaller than the sum of its proper divisors (33461766096).

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

15253221120 is an equidigital number, since it uses as much as digits as its factorization.

15253221120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3972217 (or 3972203 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 15253221120 its reverse (2112235251), we get a palindrome (17365456371).

The spelling of 15253221120 in words is "fifteen billion, two hundred fifty-three million, two hundred twenty-one thousand, one hundred twenty".