11521226 has 4 divisors (see below), whose sum is σ = 17281842. Its totient is φ = 5760612.

The previous prime is 11521199. The next prime is 11521249. The reversal of 11521226 is 62212511.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11458225 + 63001 = 3385^2 + 251^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11521198 and 11521207.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2880305 + ... + 2880308.

Almost surely, 2^11521226 is an apocalyptic number.

11521226 is a deficient number, since it is larger than the sum of its proper divisors (5760616).

11521226 is an equidigital number, since it uses as much as digits as its factorization.

11521226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5760615.

The product of its digits is 240, while the sum is 20.

The square root of 11521226 is about 3394.2931517475. The cubic root of 11521226 is about 225.8566585234.

Adding to 11521226 its reverse (62212511), we get a palindrome (73733737).

The spelling of 11521226 in words is "eleven million, five hundred twenty-one thousand, two hundred twenty-six".