122200100312 has 16 divisors (see below), whose sum is σ = 229132185360. Its totient is φ = 61098184224.

The previous prime is 122200100311. The next prime is 122200100371. The reversal of 122200100312 is 213001002221.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122200100311) 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, 67973 + ... + 499019.

It is an arithmetic number, because the mean of its divisors is an integer number (14320761585).

Almost surely, 2^122200100312 is an apocalyptic number.

It is an amenable number.

122200100312 is a deficient number, since it is larger than the sum of its proper divisors (106932085048).

122200100312 is a wasteful number, since it uses less digits than its factorization.

122200100312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466490 (or 466486 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 122200100312 its reverse (213001002221), we get a palindrome (335201102533).

The spelling of 122200100312 in words is "one hundred twenty-two billion, two hundred million, one hundred thousand, three hundred twelve".