122100133213 has 4 divisors (see below), whose sum is σ = 122203521468. Its totient is φ = 121996744960.

The previous prime is 122100133193. The next prime is 122100133223. The reversal of 122100133213 is 312331001221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 312331001221 = 331 ⋅943598191.

It can be written as a sum of positive squares in 2 ways, for example, as 71108622244 + 50991510969 = 266662^2 + 225813^2 .

It is a cyclic number.

It is not a de Polignac number, because 122100133213 - 2⁹ = 122100132701 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 (122100133223) 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, 51692356 + ... + 51694717.

It is an arithmetic number, because the mean of its divisors is an integer number (30550880367).

Almost surely, 2^122100133213 is an apocalyptic number.

It is an amenable number.

122100133213 is a deficient number, since it is larger than the sum of its proper divisors (103388255).

122100133213 is a wasteful number, since it uses less digits than its factorization.

122100133213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103388254.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 122100133213 its reverse (312331001221), we get a palindrome (434431134434).

The spelling of 122100133213 in words is "one hundred twenty-two billion, one hundred million, one hundred thirty-three thousand, two hundred thirteen".