11220512 has 24 divisors (see below), whose sum is σ = 22804992. Its totient is φ = 5428800.

The previous prime is 11220491. The next prime is 11220533. The reversal of 11220512 is 21502211.

It is an interprime number because it is at equal distance from previous prime (11220491) and next prime (11220533).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4664 + ... + 6647.

It is an arithmetic number, because the mean of its divisors is an integer number (950208).

Almost surely, 2^11220512 is an apocalyptic number.

It is an amenable number.

11220512 is an abundant number, since it is smaller than the sum of its proper divisors (11584480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11220512 is a wasteful number, since it uses less digits than its factorization.

11220512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11352 (or 11344 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 11220512 is about 3349.7032704405. The cubic root of 11220512 is about 223.8742917109.

Adding to 11220512 its reverse (21502211), we get a palindrome (32722723).

The spelling of 11220512 in words is "eleven million, two hundred twenty thousand, five hundred twelve".