122973228 has 120 divisors (see below), whose sum is σ = 374035200. Its totient is φ = 34502112.

The previous prime is 122973209. The next prime is 122973239. The reversal of 122973228 is 822379221.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 122973192 and 122973201.

It is an unprimeable number.

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 39 ways as a sum of consecutive naturals, for example, 133353 + ... + 134271.

It is an arithmetic number, because the mean of its divisors is an integer number (3116960).

Almost surely, 2^122973228 is an apocalyptic number.

122973228 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 122973228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187017600).

122973228 is an abundant number, since it is smaller than the sum of its proper divisors (251061972).

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

122973228 is a wasteful number, since it uses less digits than its factorization.

122973228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1001 (or 990 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 122973228 is about 11089.3294657522. The cubic root of 122973228 is about 497.2828988013.

It can be divided in two parts, 122973 and 228, that added together give a square (123201 = 351²).

The spelling of 122973228 in words is "one hundred twenty-two million, nine hundred seventy-three thousand, two hundred twenty-eight".