1226812332 has 48 divisors (see below), whose sum is σ = 2953641600. Its totient is φ = 396071040.

The previous prime is 1226812319. The next prime is 1226812339. The reversal of 1226812332 is 2332186221.

It is a self number, because there is not a number n which added to its sum of digits gives 1226812332.

It is not an unprimeable number, because it can be changed into a prime (1226812339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59419 + ... + 77357.

It is an arithmetic number, because the mean of its divisors is an integer number (61534200).

Almost surely, 2^1226812332 is an apocalyptic number.

1226812332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1226812332 is an abundant number, since it is smaller than the sum of its proper divisors (1726829268).

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

1226812332 is a wasteful number, since it uses less digits than its factorization.

1226812332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18126 (or 18124 counting only the distinct ones).

The product of its digits is 6912, while the sum is 30.

The square root of 1226812332 is about 35025.8808882803. The cubic root of 1226812332 is about 1070.5148865596.

Adding to 1226812332 its reverse (2332186221), we get a palindrome (3558998553).

The spelling of 1226812332 in words is "one billion, two hundred twenty-six million, eight hundred twelve thousand, three hundred thirty-two".