123100122200212 has 48 divisors (see below), whose sum is σ = 230206071997440. Its totient is φ = 57393978969600.

The previous prime is 123100122200207. The next prime is 123100122200219. The reversal of 123100122200212 is 212002221001321.

It is a self number, because there is not a number n which added to its sum of digits gives 123100122200212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123100122200219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106387137 + ... + 107538007.

It is an arithmetic number, because the mean of its divisors is an integer number (4795959833280).

Almost surely, 2^{123100122200212} is an apocalyptic number.

It is an amenable number.

123100122200212 is a deficient number, since it is larger than the sum of its proper divisors (107105949797228).

123100122200212 is a wasteful number, since it uses less digits than its factorization.

123100122200212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1165432 (or 1165430 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 123100122200212 its reverse (212002221001321), we get a palindrome (335102343201533).

The spelling of 123100122200212 in words is "one hundred twenty-three trillion, one hundred billion, one hundred twenty-two million, two hundred thousand, two hundred twelve".