1221222232 has 16 divisors (see below), whose sum is σ = 2290265640. Its totient is φ = 610484736.

The previous prime is 1221222229. The next prime is 1221222271. The reversal of 1221222232 is 2322221221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34803 + ... + 60445.

Almost surely, 2^1221222232 is an apocalyptic number.

It is an amenable number.

1221222232 is a deficient number, since it is larger than the sum of its proper divisors (1069043408).

1221222232 is a wasteful number, since it uses less digits than its factorization.

1221222232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31602 (or 31598 counting only the distinct ones).

The product of its digits is 384, while the sum is 19.

The square root of 1221222232 is about 34945.9902134708. The cubic root of 1221222232 is about 1068.8864392595.

Adding to 1221222232 its reverse (2322221221), we get a palindrome (3543443453).

The spelling of 1221222232 in words is "one billion, two hundred twenty-one million, two hundred twenty-two thousand, two hundred thirty-two".