1213321422233 has 2 divisors, whose sum is σ = 1213321422234. Its totient is φ = 1213321422232.

The previous prime is 1213321422217. The next prime is 1213321422251. The reversal of 1213321422233 is 3322241233121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1058567303689 + 154754118544 = 1028867^2 + 393388^2 .

It is an emirp because it is prime and its reverse (3322241233121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1213321422233 - 2⁴ = 1213321422217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1213321422196 and 1213321422205.

It is not a weakly prime, because it can be changed into another prime (1213321422263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606660711116 + 606660711117.

It is an arithmetic number, because the mean of its divisors is an integer number (606660711117).

Almost surely, 2^{1213321422233} is an apocalyptic number.

It is an amenable number.

1213321422233 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213321422233 is an equidigital number, since it uses as much as digits as its factorization.

1213321422233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 29.

Adding to 1213321422233 its reverse (3322241233121), we get a palindrome (4535562655354).

The spelling of 1213321422233 in words is "one trillion, two hundred thirteen billion, three hundred twenty-one million, four hundred twenty-two thousand, two hundred thirty-three".