122000028 has 24 divisors (see below), whose sum is σ = 284981760. Its totient is φ = 40621680.

The previous prime is 122000003. The next prime is 122000029. The reversal of 122000028 is 820000221.

It is a junction number, because it is equal to n+sod(n) for n = 121999980 and 122000016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122000029) 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 7 ways as a sum of consecutive naturals, for example, 6763 + ... + 17021.

It is an arithmetic number, because the mean of its divisors is an integer number (11874240).

Almost surely, 2^122000028 is an apocalyptic number.

It is an amenable number.

122000028 is an abundant number, since it is smaller than the sum of its proper divisors (162981732).

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

122000028 is a wasteful number, since it uses less digits than its factorization.

122000028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11257 (or 11255 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 122000028 is about 11045.3622846876. The cubic root of 122000028 is about 495.9676043271.

Adding to 122000028 its reverse (820000221), we get a palindrome (942000249).

The spelling of 122000028 in words is "one hundred twenty-two million, twenty-eight", and thus it is an aban number.