11212013320 has 32 divisors (see below), whose sum is σ = 26323859520. Its totient is φ = 4289813440.

The previous prime is 11212013291. The next prime is 11212013339. The reversal of 11212013320 is 2331021211.

It is a junction number, because it is equal to n+sod(n) for n = 11212013294 and 11212013303.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6092566 + ... + 6094405.

It is an arithmetic number, because the mean of its divisors is an integer number (822620610).

Almost surely, 2^11212013320 is an apocalyptic number.

11212013320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11212013320 is an abundant number, since it is smaller than the sum of its proper divisors (15111846200).

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

11212013320 is a wasteful number, since it uses less digits than its factorization.

11212013320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12187005 (or 12187001 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 11212013320 its reverse (2331021211), we get a palindrome (13543034531).

The spelling of 11212013320 in words is "eleven billion, two hundred twelve million, thirteen thousand, three hundred twenty".