1221333213322 has 8 divisors (see below), whose sum is σ = 1928420863200. Its totient is φ = 578526258924.

The previous prime is 1221333213271. The next prime is 1221333213337. The reversal of 1221333213322 is 2233123331221.

It is a happy number.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16070173822 + ... + 16070173897.

It is an arithmetic number, because the mean of its divisors is an integer number (241052607900).

Almost surely, 2^{1221333213322} is an apocalyptic number.

1221333213322 is a deficient number, since it is larger than the sum of its proper divisors (707087649878).

1221333213322 is a wasteful number, since it uses less digits than its factorization.

1221333213322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32140347740.

The product of its digits is 7776, while the sum is 28.

Adding to 1221333213322 its reverse (2233123331221), we get a palindrome (3454456544543).

The spelling of 1221333213322 in words is "one trillion, two hundred twenty-one billion, three hundred thirty-three million, two hundred thirteen thousand, three hundred twenty-two".