11215591200 has 864 divisors, whose sum is σ = 46329034752. Its totient is φ = 2525952000.

The previous prime is 11215591199. The next prime is 11215591217. The reversal of 11215591200 is 219551211.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 85615135 + ... + 85615265.

It is an arithmetic number, because the mean of its divisors is an integer number (53621568).

Almost surely, 2^11215591200 is an apocalyptic number.

11215591200 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 11215591200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23164517376).

11215591200 is an abundant number, since it is smaller than the sum of its proper divisors (35113443552).

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

11215591200 is a wasteful number, since it uses less digits than its factorization.

11215591200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238 (or 222 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 27.

The spelling of 11215591200 in words is "eleven billion, two hundred fifteen million, five hundred ninety-one thousand, two hundred".