122204031312 has 120 divisors (see below), whose sum is σ = 352884601440. Its totient is φ = 36403769600.

The previous prime is 122204031311. The next prime is 122204031317. The reversal of 122204031312 is 213130402221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122204031311) 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 23 ways as a sum of consecutive naturals, for example, 164362 + ... + 520982.

It is an arithmetic number, because the mean of its divisors is an integer number (2940705012).

Almost surely, 2^122204031312 is an apocalyptic number.

122204031312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122204031312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176442300720).

122204031312 is an abundant number, since it is smaller than the sum of its proper divisors (230680570128).

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

122204031312 is a wasteful number, since it uses less digits than its factorization.

122204031312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356713 (or 356696 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 122204031312 its reverse (213130402221), we get a palindrome (335334433533).

The spelling of 122204031312 in words is "one hundred twenty-two billion, two hundred four million, thirty-one thousand, three hundred twelve".