122123213213 has 2 divisors, whose sum is σ = 122123213214. Its totient is φ = 122123213212.

The previous prime is 122123213197. The next prime is 122123213227. The reversal of 122123213213 is 312312321221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 122106915844 + 16297369 = 349438^2 + 4037^2 .

It is a cyclic number.

It is not a de Polignac number, because 122123213213 - 2⁴ = 122123213197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122123213243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61061606606 + 61061606607.

It is an arithmetic number, because the mean of its divisors is an integer number (61061606607).

Almost surely, 2^122123213213 is an apocalyptic number.

It is an amenable number.

122123213213 is a deficient number, since it is larger than the sum of its proper divisors (1).

122123213213 is an equidigital number, since it uses as much as digits as its factorization.

122123213213 is an odious number, because the sum of its binary digits is odd.

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

Adding to 122123213213 its reverse (312312321221), we get a palindrome (434435534434).

The spelling of 122123213213 in words is "one hundred twenty-two billion, one hundred twenty-three million, two hundred thirteen thousand, two hundred thirteen".