1215031135200 has 288 divisors, whose sum is σ = 4042057979232. Its totient is φ = 316929024000.

The previous prime is 1215031135081. The next prime is 1215031135229. The reversal of 1215031135200 is 25311305121.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 26475474 + ... + 26521326.

It is an arithmetic number, because the mean of its divisors is an integer number (14034923539).

Almost surely, 2^{1215031135200} is an apocalyptic number.

1215031135200 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 1215031135200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2021028989616).

1215031135200 is an abundant number, since it is smaller than the sum of its proper divisors (2827026844032).

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

1215031135200 is a wasteful number, since it uses less digits than its factorization.

1215031135200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46118 (or 46105 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 24.

The spelling of 1215031135200 in words is "one trillion, two hundred fifteen billion, thirty-one million, one hundred thirty-five thousand, two hundred".