12251033418 has 96 divisors (see below), whose sum is σ = 26958096000. Its totient is φ = 3709525248.

The previous prime is 12251033411. The next prime is 12251033423. The reversal of 12251033418 is 81433015221.

It is not an unprimeable number, because it can be changed into a prime (12251033411) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21994396 + ... + 21994952.

It is an arithmetic number, because the mean of its divisors is an integer number (280813500).

Almost surely, 2^12251033418 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12251033418, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13479048000).

12251033418 is an abundant number, since it is smaller than the sum of its proper divisors (14707062582).

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

12251033418 is a wasteful number, since it uses less digits than its factorization.

12251033418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 896 (or 883 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

Adding to 12251033418 its reverse (81433015221), we get a palindrome (93684048639).

The spelling of 12251033418 in words is "twelve billion, two hundred fifty-one million, thirty-three thousand, four hundred eighteen".