122133113213 has 4 divisors (see below), whose sum is σ = 122134527228. Its totient is φ = 122131699200.

The previous prime is 122133113197. The next prime is 122133113251. The reversal of 122133113213 is 312311331221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 312311331221 = 29 ⋅10769356249.

It can be written as a sum of positive squares in 2 ways, for example, as 39408999289 + 82724113924 = 198517^2 + 287618^2 .

It is a cyclic number.

It is not a de Polignac number, because 122133113213 - 2⁴ = 122133113197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122133113293) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 568388 + ... + 753213.

It is an arithmetic number, because the mean of its divisors is an integer number (30533631807).

Almost surely, 2^122133113213 is an apocalyptic number.

It is an amenable number.

122133113213 is a deficient number, since it is larger than the sum of its proper divisors (1414015).

122133113213 is an equidigital number, since it uses as much as digits as its factorization.

122133113213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1414014.

The product of its digits is 648, while the sum is 23.

Adding to 122133113213 its reverse (312311331221), we get a palindrome (434444444434).

The spelling of 122133113213 in words is "one hundred twenty-two billion, one hundred thirty-three million, one hundred thirteen thousand, two hundred thirteen".