122003128 has 24 divisors (see below), whose sum is σ = 247708800. Its totient is φ = 56308512.

The previous prime is 122003113. The next prime is 122003129. The reversal of 122003128 is 821300221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122003129) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 43768 + ... + 46471.

It is an arithmetic number, because the mean of its divisors is an integer number (10321200).

Almost surely, 2^122003128 is an apocalyptic number.

It is an amenable number.

122003128 is an abundant number, since it is smaller than the sum of its proper divisors (125705672).

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

122003128 is a wasteful number, since it uses less digits than its factorization.

122003128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90271 (or 90254 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 122003128 is about 11045.5026141865. The cubic root of 122003128 is about 495.9718051091.

Adding to 122003128 its reverse (821300221), we get a palindrome (943303349).

The spelling of 122003128 in words is "one hundred twenty-two million, three thousand, one hundred twenty-eight".