11221422013 has 4 divisors (see below), whose sum is σ = 11230876800. Its totient is φ = 11211967228.

The previous prime is 11221422007. The next prime is 11221422031. The reversal of 11221422013 is 31022412211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11221422013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11221422083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4725613 + ... + 4727986.

It is an arithmetic number, because the mean of its divisors is an integer number (2807719200).

Almost surely, 2^11221422013 is an apocalyptic number.

It is an amenable number.

11221422013 is a deficient number, since it is larger than the sum of its proper divisors (9454787).

11221422013 is an equidigital number, since it uses as much as digits as its factorization.

11221422013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9454786.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 11221422013 its reverse (31022412211), we get a palindrome (42243834224).

The spelling of 11221422013 in words is "eleven billion, two hundred twenty-one million, four hundred twenty-two thousand, thirteen".