11220344213 has 16 divisors (see below), whose sum is σ = 12173763840. Its totient is φ = 10280032704.

The previous prime is 11220344203. The next prime is 11220344237. The reversal of 11220344213 is 31244302211.

It is a cyclic number.

It is not a de Polignac number, because 11220344213 - 2²² = 11216149909 is a prime.

It is a super-2 number, since 2×11220344213² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11220344203) 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, 1442228 + ... + 1449986.

It is an arithmetic number, because the mean of its divisors is an integer number (760860240).

Almost surely, 2^11220344213 is an apocalyptic number.

11220344213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

11220344213 is a deficient number, since it is larger than the sum of its proper divisors (953419627).

11220344213 is a wasteful number, since it uses less digits than its factorization.

11220344213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8588.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 11220344213 its reverse (31244302211), we get a palindrome (42464646424).

The spelling of 11220344213 in words is "eleven billion, two hundred twenty million, three hundred forty-four thousand, two hundred thirteen".