11520012226 has 16 divisors (see below), whose sum is σ = 18359815320. Its totient is φ = 5421177600.

The previous prime is 11520012169. The next prime is 11520012239. The reversal of 11520012226 is 62221002511.

It can be written as a sum of positive squares in 4 ways, for example, as 6556950625 + 4963061601 = 80975^2 + 70449^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11520012197 and 11520012206.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 576375 + ... + 596026.

Almost surely, 2^11520012226 is an apocalyptic number.

11520012226 is a deficient number, since it is larger than the sum of its proper divisors (6839803094).

11520012226 is an equidigital number, since it uses as much as digits as its factorization.

11520012226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1172454 (or 1172420 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

Adding to 11520012226 its reverse (62221002511), we get a palindrome (73741014737).

The spelling of 11520012226 in words is "eleven billion, five hundred twenty million, twelve thousand, two hundred twenty-six".