20162112 has 56 divisors (see below), whose sum is σ = 53742336. Its totient is φ = 6670848.

The previous prime is 20162071. The next prime is 20162113. The reversal of 20162112 is 21126102.

It is a junction number, because it is equal to n+sod(n) for n = 20162091 and 20162100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20162113) 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, 32913 + ... + 33519.

Almost surely, 2^20162112 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 20162112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26871168).

20162112 is an abundant number, since it is smaller than the sum of its proper divisors (33580224).

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

20162112 is a wasteful number, since it uses less digits than its factorization.

20162112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 795 (or 785 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 20162112 is about 4490.2240478622. The cubic root of 20162112 is about 272.1731884349.

Adding to 20162112 its reverse (21126102), we get a palindrome (41288214).

The spelling of 20162112 in words is "twenty million, one hundred sixty-two thousand, one hundred twelve".