1215441044224 has 108 divisors (see below), whose sum is σ = 2720166078168. Its totient is φ = 537539788800.

The previous prime is 1215441044219. The next prime is 1215441044231. The reversal of 1215441044224 is 4224401445121.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1215441044224.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3697464 + ... + 4012744.

It is an arithmetic number, because the mean of its divisors is an integer number (25186722946).

Almost surely, 2^{1215441044224} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1215441044224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1360083039084).

1215441044224 is an abundant number, since it is smaller than the sum of its proper divisors (1504725033944).

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

1215441044224 is an equidigital number, since it uses as much as digits as its factorization.

1215441044224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315382 (or 315331 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 34.

Adding to 1215441044224 its reverse (4224401445121), we get a palindrome (5439842489345).

The spelling of 1215441044224 in words is "one trillion, two hundred fifteen billion, four hundred forty-one million, forty-four thousand, two hundred twenty-four".