1213312221322 has 16 divisors (see below), whose sum is σ = 1841943589920. Its totient is φ = 599331405232.

The previous prime is 1213312221301. The next prime is 1213312221349. The reversal of 1213312221322 is 2231222133121.

It is a super-2 number, since 2×1213312221322² (a number of 25 digits) contains 22 as substring.

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, 8804829 + ... + 8941567.

It is an arithmetic number, because the mean of its divisors is an integer number (115121474370).

Almost surely, 2^{1213312221322} is an apocalyptic number.

1213312221322 is a deficient number, since it is larger than the sum of its proper divisors (628631368598).

1213312221322 is a wasteful number, since it uses less digits than its factorization.

1213312221322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190277.

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

Adding to 1213312221322 its reverse (2231222133121), we get a palindrome (3444534354443).

The spelling of 1213312221322 in words is "one trillion, two hundred thirteen billion, three hundred twelve million, two hundred twenty-one thousand, three hundred twenty-two".