1213320222113 has 2 divisors, whose sum is σ = 1213320222114. Its totient is φ = 1213320222112.

The previous prime is 1213320222097. The next prime is 1213320222119. The reversal of 1213320222113 is 3112220233121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1007520085009 + 205800137104 = 1003753^2 + 453652^2 .

It is a cyclic number.

It is not a de Polignac number, because 1213320222113 - 2⁴ = 1213320222097 is a prime.

It is a super-2 number, since 2×1213320222113² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1213320222119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606660111056 + 606660111057.

It is an arithmetic number, because the mean of its divisors is an integer number (606660111057).

Almost surely, 2^{1213320222113} is an apocalyptic number.

It is an amenable number.

1213320222113 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213320222113 is an equidigital number, since it uses as much as digits as its factorization.

1213320222113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 1213320222113 its reverse (3112220233121), we get a palindrome (4325540455234).

The spelling of 1213320222113 in words is "one trillion, two hundred thirteen billion, three hundred twenty million, two hundred twenty-two thousand, one hundred thirteen".