11221136 has 20 divisors (see below), whose sum is σ = 21794364. Its totient is φ = 5596800.

The previous prime is 11221127. The next prime is 11221141. The reversal of 11221136 is 63112211.

It can be written as a sum of positive squares in 2 ways, for example, as 8179600 + 3041536 = 2860^2 + 1744^2 .

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, 10046 + ... + 11106.

Almost surely, 2^11221136 is an apocalyptic number.

11221136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11221136 is a deficient number, since it is larger than the sum of its proper divisors (10573228).

11221136 is a wasteful number, since it uses less digits than its factorization.

11221136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1730 (or 1724 counting only the distinct ones).

The product of its digits is 72, while the sum is 17.

The square root of 11221136 is about 3349.7964117242. The cubic root of 11221136 is about 223.8784416988.

Adding to 11221136 its reverse (63112211), we get a palindrome (74333347).

The spelling of 11221136 in words is "eleven million, two hundred twenty-one thousand, one hundred thirty-six".