12001352256 has 112 divisors (see below), whose sum is σ = 35551750080. Its totient is φ = 3969838080.

The previous prime is 12001352213. The next prime is 12001352273. The reversal of 12001352256 is 65225310021.

It is a happy number.

12001352256 is a `hidden beast` number, since 120 + 0 + 13 + 522 + 5 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 199860 + ... + 252876.

It is an arithmetic number, because the mean of its divisors is an integer number (317426340).

Almost surely, 2^12001352256 is an apocalyptic number.

12001352256 is a gapful number since it is divisible by the number (16) 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 12001352256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17775875040).

12001352256 is an abundant number, since it is smaller than the sum of its proper divisors (23550397824).

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

12001352256 is a wasteful number, since it uses less digits than its factorization.

12001352256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53169 (or 53153 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 12001352256 its reverse (65225310021), we get a palindrome (77226662277).

The spelling of 12001352256 in words is "twelve billion, one million, three hundred fifty-two thousand, two hundred fifty-six".