1221133322 has 16 divisors (see below), whose sum is σ = 1850238720. Its totient is φ = 604397808.

The previous prime is 1221133313. The next prime is 1221133351. The reversal of 1221133322 is 2233311221.

It is a junction number, because it is equal to n+sod(n) for n = 1221133294 and 1221133303.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 322283 + ... + 326049.

It is an arithmetic number, because the mean of its divisors is an integer number (115639920).

Almost surely, 2^1221133322 is an apocalyptic number.

1221133322 is a deficient number, since it is larger than the sum of its proper divisors (629105398).

1221133322 is a wasteful number, since it uses less digits than its factorization.

1221133322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5365.

The product of its digits is 432, while the sum is 20.

The square root of 1221133322 is about 34944.7180844259. The cubic root of 1221133322 is about 1068.8604988540.

Adding to 1221133322 its reverse (2233311221), we get a palindrome (3454444543).

The spelling of 1221133322 in words is "one billion, two hundred twenty-one million, one hundred thirty-three thousand, three hundred twenty-two".