11212133320 has 64 divisors (see below), whose sum is σ = 27411724800. Its totient is φ = 4111741440.

The previous prime is 11212133299. The next prime is 11212133327. The reversal of 11212133320 is 2333121211.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (11212133327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 214389 + ... + 261508.

It is an arithmetic number, because the mean of its divisors is an integer number (428308200).

Almost surely, 2^11212133320 is an apocalyptic number.

11212133320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11212133320 is an abundant number, since it is smaller than the sum of its proper divisors (16199591480).

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

11212133320 is a wasteful number, since it uses less digits than its factorization.

11212133320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475958 (or 475954 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 11212133320 its reverse (2333121211), we get a palindrome (13545254531).

The spelling of 11212133320 in words is "eleven billion, two hundred twelve million, one hundred thirty-three thousand, three hundred twenty".