1221168932 has 12 divisors (see below), whose sum is σ = 2152421040. Its totient is φ = 606191496.

The previous prime is 1221168929. The next prime is 1221168989. The reversal of 1221168932 is 2398611221.

It is a junction number, because it is equal to n+sod(n) for n = 1221168892 and 1221168901.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1097618 + ... + 1098729.

It is an arithmetic number, because the mean of its divisors is an integer number (179368420).

Almost surely, 2^1221168932 is an apocalyptic number.

It is an amenable number.

1221168932 is a deficient number, since it is larger than the sum of its proper divisors (931252108).

1221168932 is a wasteful number, since it uses less digits than its factorization.

1221168932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2196490 (or 2196488 counting only the distinct ones).

The product of its digits is 10368, while the sum is 35.

The square root of 1221168932 is about 34945.2275997739. The cubic root of 1221168932 is about 1068.8708885883.

The spelling of 1221168932 in words is "one billion, two hundred twenty-one million, one hundred sixty-eight thousand, nine hundred thirty-two".