1215150353112 has 128 divisors (see below), whose sum is σ = 3283722685440. Its totient is φ = 373320468480.

The previous prime is 1215150353099. The next prime is 1215150353147. The reversal of 1215150353112 is 2113530515121.

It is a self number, because there is not a number n which added to its sum of digits gives 1215150353112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5542033 + ... + 5757119.

It is an arithmetic number, because the mean of its divisors is an integer number (25654083480).

Almost surely, 2^{1215150353112} is an apocalyptic number.

1215150353112 is a gapful number since it is divisible by the number (12) 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 1215150353112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1641861342720).

1215150353112 is an abundant number, since it is smaller than the sum of its proper divisors (2068572332328).

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

1215150353112 is a wasteful number, since it uses less digits than its factorization.

1215150353112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215401 (or 215397 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 30.

Adding to 1215150353112 its reverse (2113530515121), we get a palindrome (3328680868233).

The spelling of 1215150353112 in words is "one trillion, two hundred fifteen billion, one hundred fifty million, three hundred fifty-three thousand, one hundred twelve".