20222120 has 32 divisors (see below), whose sum is σ = 46055520. Its totient is φ = 7990080.

The previous prime is 20222117. The next prime is 20222123. The reversal of 20222120 is 2122202.

It is an interprime number because it is at equal distance from previous prime (20222117) and next prime (20222123).

It is not an unprimeable number, because it can be changed into a prime (20222123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 275 + ... + 6365.

It is an arithmetic number, because the mean of its divisors is an integer number (1439235).

Almost surely, 2^20222120 is an apocalyptic number.

20222120 is a gapful number since it is divisible by the number (20) 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 20222120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23027760).

20222120 is an abundant number, since it is smaller than the sum of its proper divisors (25833400).

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

20222120 is a wasteful number, since it uses less digits than its factorization.

20222120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6185 (or 6181 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 20222120 is about 4496.9011552401. The cubic root of 20222120 is about 272.4429417892.

Adding to 20222120 its reverse (2122202), we get a palindrome (22344322).

It can be divided in two parts, 202 and 22120, that added together give a palindrome (22322).

The spelling of 20222120 in words is "twenty million, two hundred twenty-two thousand, one hundred twenty".