122031018 has 12 divisors (see below), whose sum is σ = 264400578. Its totient is φ = 40677000.

The previous prime is 122031017. The next prime is 122031023. The reversal of 122031018 is 810130221.

It can be written as a sum of positive squares in only one way, i.e., 91527489 + 30503529 = 9567^2 + 5523^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 6779501 = 122031018 / (1 + 2 + 2 + 0 + 3 + 1 + 0 + 1 + 8).

It is not an unprimeable number, because it can be changed into a prime (122031011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3389733 + ... + 3389768.

Almost surely, 2^122031018 is an apocalyptic number.

122031018 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

122031018 is an abundant number, since it is smaller than the sum of its proper divisors (142369560).

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

122031018 is a wasteful number, since it uses less digits than its factorization.

122031018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6779509 (or 6779506 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 122031018 is about 11046.7650468361. The cubic root of 122031018 is about 496.0095953962.

Adding to 122031018 its reverse (810130221), we get a palindrome (932161239).

The spelling of 122031018 in words is "one hundred twenty-two million, thirty-one thousand, eighteen".