122318812 has 48 divisors (see below), whose sum is σ = 267805440. Its totient is φ = 47491200.

The previous prime is 122318803. The next prime is 122318813. The reversal of 122318812 is 218813221.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122318813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125487 + ... + 126457.

It is an arithmetic number, because the mean of its divisors is an integer number (5579280).

Almost surely, 2^122318812 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122318812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133902720).

122318812 is an abundant number, since it is smaller than the sum of its proper divisors (145486628).

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

122318812 is a wasteful number, since it uses less digits than its factorization.

122318812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1402 (or 1400 counting only the distinct ones).

The product of its digits is 1536, while the sum is 28.

The square root of 122318812 is about 11059.7835421856. The cubic root of 122318812 is about 496.3992135899.

The spelling of 122318812 in words is "one hundred twenty-two million, three hundred eighteen thousand, eight hundred twelve".