11220013 has 16 divisors (see below), whose sum is σ = 13968000. Its totient is φ = 8793792.

The previous prime is 11220007. The next prime is 11220029. The reversal of 11220013 is 31002211.

11220013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11220013 - 2¹³ = 11211821 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 (11220073) 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, 2403 + ... + 5311.

It is an arithmetic number, because the mean of its divisors is an integer number (873000).

Almost surely, 2^11220013 is an apocalyptic number.

It is an amenable number.

11220013 is a deficient number, since it is larger than the sum of its proper divisors (2747987).

11220013 is a wasteful number, since it uses less digits than its factorization.

11220013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2964.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 11220013 is about 3349.6287854029. The cubic root of 11220013 is about 223.8709729399.

Adding to 11220013 its reverse (31002211), we get a palindrome (42222224).

The spelling of 11220013 in words is "eleven million, two hundred twenty thousand, thirteen".