11220573 has 32 divisors (see below), whose sum is σ = 19224576. Its totient is φ = 5658048.

The previous prime is 11220553. The next prime is 11220623. The reversal of 11220573 is 37502211.

It is not a de Polignac number, because 11220573 - 2⁵ = 11220541 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11220533) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5386 + ... + 7172.

It is an arithmetic number, because the mean of its divisors is an integer number (600768).

Almost surely, 2^11220573 is an apocalyptic number.

11220573 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

11220573 is a deficient number, since it is larger than the sum of its proper divisors (8004003).

11220573 is a wasteful number, since it uses less digits than its factorization.

11220573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1833.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 11220573 is about 3349.7123757123. The cubic root of 11220573 is about 223.8746974056.

Adding to 11220573 its reverse (37502211), we get a palindrome (48722784).

The spelling of 11220573 in words is "eleven million, two hundred twenty thousand, five hundred seventy-three".