122012243312 has 20 divisors (see below), whose sum is σ = 246676927440. Its totient is φ = 58353681408.

The previous prime is 122012243299. The next prime is 122012243317. The reversal of 122012243312 is 213342210221.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122012243317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165777137 + ... + 165777872.

It is an arithmetic number, because the mean of its divisors is an integer number (12333846372).

Almost surely, 2^122012243312 is an apocalyptic number.

It is an amenable number.

122012243312 is an abundant number, since it is smaller than the sum of its proper divisors (124664684128).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122012243312 is a wasteful number, since it uses less digits than its factorization.

122012243312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331555040 (or 331555034 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 122012243312 its reverse (213342210221), we get a palindrome (335354453533).

The spelling of 122012243312 in words is "one hundred twenty-two billion, twelve million, two hundred forty-three thousand, three hundred twelve".