1222290732 has 48 divisors (see below), whose sum is σ = 3073593600. Its totient is φ = 375820608.

The previous prime is 1222290731. The next prime is 1222290763. The reversal of 1222290732 is 2370922221.

It is a self number, because there is not a number n which added to its sum of digits gives 1222290732.

It is not an unprimeable number, because it can be changed into a prime (1222290731) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 419593 + ... + 422495.

It is an arithmetic number, because the mean of its divisors is an integer number (64033200).

Almost surely, 2^1222290732 is an apocalyptic number.

1222290732 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1222290732 is an abundant number, since it is smaller than the sum of its proper divisors (1851302868).

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

1222290732 is a wasteful number, since it uses less digits than its factorization.

1222290732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5622 (or 5620 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 1222290732 is about 34961.2747479265. The cubic root of 1222290732 is about 1069.1980866676.

The spelling of 1222290732 in words is "one billion, two hundred twenty-two million, two hundred ninety thousand, seven hundred thirty-two".