11215397292 has 96 divisors (see below), whose sum is σ = 30543878400. Its totient is φ = 3166905600.

The previous prime is 11215397251. The next prime is 11215397321. The reversal of 11215397292 is 29279351211.

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, 116334 + ... + 189642.

It is an arithmetic number, because the mean of its divisors is an integer number (318165400).

Almost surely, 2^11215397292 is an apocalyptic number.

11215397292 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 11215397292, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15271939200).

11215397292 is an abundant number, since it is smaller than the sum of its proper divisors (19328481108).

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

11215397292 is a wasteful number, since it uses less digits than its factorization.

11215397292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73407 (or 73405 counting only the distinct ones).

The product of its digits is 68040, while the sum is 42.

The spelling of 11215397292 in words is "eleven billion, two hundred fifteen million, three hundred ninety-seven thousand, two hundred ninety-two".