20201112 has 48 divisors (see below), whose sum is σ = 56197440. Its totient is φ = 6550848.

The previous prime is 20201101. The next prime is 20201113. The reversal of 20201112 is 21110202.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 20201094 and 20201103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20201113) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1128 + ... + 6455.

It is an arithmetic number, because the mean of its divisors is an integer number (1170780).

Almost surely, 2^20201112 is an apocalyptic number.

It is an amenable number.

20201112 is an abundant number, since it is smaller than the sum of its proper divisors (35996328).

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

20201112 is a wasteful number, since it uses less digits than its factorization.

20201112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7632 (or 7625 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 20201112 is about 4494.5647175227. The cubic root of 20201112 is about 272.3485655247.

Adding to 20201112 its reverse (21110202), we get a palindrome (41311314).

The spelling of 20201112 in words is "twenty million, two hundred one thousand, one hundred twelve".