1221232322 has 8 divisors (see below), whose sum is σ = 1861878972. Its totient is φ = 600606000.

The previous prime is 1221232319. The next prime is 1221232339. The reversal of 1221232322 is 2232321221.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 952895161 + 268337161 = 30869^2 + 16381^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1221232294 and 1221232303.

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, 5004929 + ... + 5005172.

Almost surely, 2^1221232322 is an apocalyptic number.

1221232322 is a deficient number, since it is larger than the sum of its proper divisors (640646650).

1221232322 is a wasteful number, since it uses less digits than its factorization.

1221232322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10010164.

The product of its digits is 576, while the sum is 20.

The square root of 1221232322 is about 34946.1345788057. The cubic root of 1221232322 is about 1068.8893830411.

Adding to 1221232322 its reverse (2232321221), we get a palindrome (3453553543).

The spelling of 1221232322 in words is "one billion, two hundred twenty-one million, two hundred thirty-two thousand, three hundred twenty-two".