122023188 has 144 divisors (see below), whose sum is σ = 378443520. Its totient is φ = 32389632.

The previous prime is 122023159. The next prime is 122023189. The reversal of 122023188 is 881320221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122023189) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 214168 + ... + 214736.

It is an arithmetic number, because the mean of its divisors is an integer number (2628080).

Almost surely, 2^122023188 is an apocalyptic number.

122023188 is a gapful number since it is divisible by the number (18) 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 122023188, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189221760).

122023188 is an abundant number, since it is smaller than the sum of its proper divisors (256420332).

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

122023188 is a wasteful number, since it uses less digits than its factorization.

122023188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646 (or 641 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 122023188 is about 11046.4106387550. The cubic root of 122023188 is about 495.9989865137.

The spelling of 122023188 in words is "one hundred twenty-two million, twenty-three thousand, one hundred eighty-eight".