11112212013 has 24 divisors (see below), whose sum is σ = 17239235040. Its totient is φ = 6348373920.

The previous prime is 11112211963. The next prime is 11112212047. The reversal of 11112212013 is 31021221111.

It is not a de Polignac number, because 11112212013 - 2⁸ = 11112211757 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11112211983 and 11112212001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11112212093) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1228678 + ... + 1237688.

It is an arithmetic number, because the mean of its divisors is an integer number (718301460).

Almost surely, 2^11112212013 is an apocalyptic number.

It is an amenable number.

11112212013 is a deficient number, since it is larger than the sum of its proper divisors (6127023027).

11112212013 is an equidigital number, since it uses as much as digits as its factorization.

11112212013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17417 (or 17410 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 11112212013 its reverse (31021221111), we get a palindrome (42133433124).

The spelling of 11112212013 in words is "eleven billion, one hundred twelve million, two hundred twelve thousand, thirteen".