11220113 has 4 divisors (see below), whose sum is σ = 11707968. Its totient is φ = 10732260.

The previous prime is 11220107. The next prime is 11220137. The reversal of 11220113 is 31102211.

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 de Polignac number, because none of the positive numbers 2^k-11220113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11220094 and 11220103.

It is not an unprimeable number, because it can be changed into a prime (11220103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 243893 + ... + 243938.

It is an arithmetic number, because the mean of its divisors is an integer number (2926992).

Almost surely, 2^11220113 is an apocalyptic number.

It is an amenable number.

11220113 is a deficient number, since it is larger than the sum of its proper divisors (487855).

11220113 is an equidigital number, since it uses as much as digits as its factorization.

11220113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487854.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 11220113 is about 3349.6437123969. The cubic root of 11220113 is about 223.8716380322.

Adding to 11220113 its reverse (31102211), we get a palindrome (42322324).

The spelling of 11220113 in words is "eleven million, two hundred twenty thousand, one hundred thirteen".