20122230 has 64 divisors (see below), whose sum is σ = 50673600. Its totient is φ = 5107200.

The previous prime is 20122213. The next prime is 20122241. The reversal of 20122230 is 3222102.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 87756 + ... + 87984.

It is an arithmetic number, because the mean of its divisors is an integer number (791775).

Almost surely, 2^20122230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20122230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25336800).

20122230 is an abundant number, since it is smaller than the sum of its proper divisors (30551370).

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

20122230 is a wasteful number, since it uses less digits than its factorization.

20122230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 20122230 is about 4485.7808684776. The cubic root of 20122230 is about 271.9936110812.

Adding to 20122230 its reverse (3222102), we get a palindrome (23344332).

The spelling of 20122230 in words is "twenty million, one hundred twenty-two thousand, two hundred thirty".