122201312 has 24 divisors (see below), whose sum is σ = 253247400. Its totient is φ = 57884544.

The previous prime is 122201311. The next prime is 122201329. The reversal of 122201312 is 213102221.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122201311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99887 + ... + 101102.

It is an arithmetic number, because the mean of its divisors is an integer number (10551975).

Almost surely, 2^122201312 is an apocalyptic number.

It is an amenable number.

122201312 is an abundant number, since it is smaller than the sum of its proper divisors (131046088).

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

122201312 is a wasteful number, since it uses less digits than its factorization.

122201312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201018 (or 201010 counting only the distinct ones).

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

The square root of 122201312 is about 11054.4702270168. The cubic root of 122201312 is about 496.2402148963.

Adding to 122201312 its reverse (213102221), we get a palindrome (335303533).

Subtracting 122201312 from its reverse (213102221), we obtain a palindrome (90900909).

The spelling of 122201312 in words is "one hundred twenty-two million, two hundred one thousand, three hundred twelve".