12571227240 has 576 divisors, whose sum is σ = 46263571200. Its totient is φ = 2728028160.

The previous prime is 12571227223. The next prime is 12571227247. The reversal of 12571227240 is 4272217521.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (12571227247) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 115332306 + ... + 115332414.

It is an arithmetic number, because the mean of its divisors is an integer number (80318700).

Almost surely, 2^12571227240 is an apocalyptic number.

12571227240 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 12571227240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23131785600).

12571227240 is an abundant number, since it is smaller than the sum of its proper divisors (33692343960).

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

12571227240 is a wasteful number, since it uses less digits than its factorization.

12571227240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218 (or 190 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 33.

The spelling of 12571227240 in words is "twelve billion, five hundred seventy-one million, two hundred twenty-seven thousand, two hundred forty".