922020228 has 144 divisors (see below), whose sum is σ = 2659378176. Its totient is φ = 267632640.

The previous prime is 922020227. The next prime is 922020247. The reversal of 922020228 is 822020229.

It is not an unprimeable number, because it can be changed into a prime (922020227) 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, 435300 + ... + 437412.

It is an arithmetic number, because the mean of its divisors is an integer number (18467904).

Almost surely, 2^922020228 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 922020228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1329689088).

922020228 is an abundant number, since it is smaller than the sum of its proper divisors (1737357948).

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

922020228 is a wasteful number, since it uses less digits than its factorization.

922020228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2194 (or 2189 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 922020228 is about 30364.7859864021. The cubic root of 922020228 is about 973.3002083658.

Subtracting from 922020228 its reverse (822020229), we obtain a palindrome (99999999).

The spelling of 922020228 in words is "nine hundred twenty-two million, twenty thousand, two hundred twenty-eight".