1213221123322 has 8 divisors (see below), whose sum is σ = 1959818737716. Its totient is φ = 559948210752.

The previous prime is 1213221123313. The next prime is 1213221123329. The reversal of 1213221123322 is 2233211223121.

It can be written as a sum of positive squares in 2 ways, for example, as 1208264822521 + 4956300801 = 1099211^2 + 70401^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1213221123329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23331175423 + ... + 23331175474.

Almost surely, 2^{1213221123322} is an apocalyptic number.

1213221123322 is a deficient number, since it is larger than the sum of its proper divisors (746597614394).

1213221123322 is a wasteful number, since it uses less digits than its factorization.

1213221123322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46662350912.

The product of its digits is 1728, while the sum is 25.

Adding to 1213221123322 its reverse (2233211223121), we get a palindrome (3446432346443).

The spelling of 1213221123322 in words is "one trillion, two hundred thirteen billion, two hundred twenty-one million, one hundred twenty-three thousand, three hundred twenty-two".