122312100213 has 24 divisors (see below), whose sum is σ = 178551915360. Its totient is φ = 80678233440.

The previous prime is 122312100199. The next prime is 122312100283. The reversal of 122312100213 is 312001213221.

122312100213 is a `hidden beast` number, since 12 + 231 + 210 + 0 + 213 = 666.

It is not a de Polignac number, because 122312100213 - 2²¹ = 122310003061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122312100283) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 199698 + ... + 533388.

It is an arithmetic number, because the mean of its divisors is an integer number (7439663140).

Almost surely, 2^122312100213 is an apocalyptic number.

It is an amenable number.

122312100213 is a deficient number, since it is larger than the sum of its proper divisors (56239815147).

122312100213 is a wasteful number, since it uses less digits than its factorization.

122312100213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334129 (or 334126 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 122312100213 its reverse (312001213221), we get a palindrome (434313313434).

The spelling of 122312100213 in words is "one hundred twenty-two billion, three hundred twelve million, one hundred thousand, two hundred thirteen".