1213331321322 has 64 divisors (see below), whose sum is σ = 2866006333440. Its totient is φ = 379171749888.

The previous prime is 1213331321317. The next prime is 1213331321327. The reversal of 1213331321322 is 2231231333121.

1213331321322 is a `hidden beast` number, since 1 + 2 + 1 + 3 + 3 + 313 + 21 + 322 = 666.

It is an interprime number because it is at equal distance from previous prime (1213331321317) and next prime (1213331321327).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1213331321327) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2335498 + ... + 2807349.

It is an arithmetic number, because the mean of its divisors is an integer number (44781348960).

Almost surely, 2^{1213331321322} is an apocalyptic number.

1213331321322 is an abundant number, since it is smaller than the sum of its proper divisors (1652675012118).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1213331321322 is a wasteful number, since it uses less digits than its factorization.

1213331321322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5143132 (or 5143126 counting only the distinct ones).

The product of its digits is 3888, while the sum is 27.

Adding to 1213331321322 its reverse (2231231333121), we get a palindrome (3444562654443).

The spelling of 1213331321322 in words is "one trillion, two hundred thirteen billion, three hundred thirty-one million, three hundred twenty-one thousand, three hundred twenty-two".