1222123013213 has 2 divisors, whose sum is σ = 1222123013214. Its totient is φ = 1222123013212.

The previous prime is 1222123013173. The next prime is 1222123013227. The reversal of 1222123013213 is 3123103212221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1004320656964 + 217802356249 = 1002158^2 + 466693^2 .

It is a cyclic number.

It is not a de Polignac number, because 1222123013213 - 2⁴⁰ = 122611385437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1222123013273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611061506606 + 611061506607.

It is an arithmetic number, because the mean of its divisors is an integer number (611061506607).

Almost surely, 2^{1222123013213} is an apocalyptic number.

It is an amenable number.

1222123013213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222123013213 is an equidigital number, since it uses as much as digits as its factorization.

1222123013213 is an evil number, because the sum of its binary digits is even.

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

Adding to 1222123013213 its reverse (3123103212221), we get a palindrome (4345226225434).

The spelling of 1222123013213 in words is "one trillion, two hundred twenty-two billion, one hundred twenty-three million, thirteen thousand, two hundred thirteen".