20022112 has 36 divisors (see below), whose sum is σ = 43336188. Its totient is φ = 9099200.

The previous prime is 20022109. The next prime is 20022113. The reversal of 20022112 is 21122002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20022113) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1287 + ... + 6457.

It is an arithmetic number, because the mean of its divisors is an integer number (1203783).

Almost surely, 2^20022112 is an apocalyptic number.

20022112 is a gapful number since it is divisible by the number (22) 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 20022112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21668094).

20022112 is an abundant number, since it is smaller than the sum of its proper divisors (23314076).

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

20022112 is a wasteful number, since it uses less digits than its factorization.

20022112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5203 (or 5184 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 20022112 is about 4474.6074688178. The cubic root of 20022112 is about 271.5417601530.

Adding to 20022112 its reverse (21122002), we get a palindrome (41144114).

It can be divided in two parts, 2002 and 2112, that multiplied together give a palindrome (4228224).

The spelling of 20022112 in words is "twenty million, twenty-two thousand, one hundred twelve".