2021112112 has 20 divisors (see below), whose sum is σ = 3917702376. Its totient is φ = 1010092160.

The previous prime is 2021112103. The next prime is 2021112127. The reversal of 2021112112 is 2112111202.

It is a junction number, because it is equal to n+sod(n) for n = 2021112092 and 2021112101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8412 + ... + 64132.

Almost surely, 2^2021112112 is an apocalyptic number.

It is an amenable number.

2021112112 is a deficient number, since it is larger than the sum of its proper divisors (1896590264).

2021112112 is a wasteful number, since it uses less digits than its factorization.

2021112112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57996 (or 57990 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 2021112112 is about 44956.7804897103. The cubic root of 2021112112 is about 1264.3388071899.

Adding to 2021112112 its reverse (2112111202), we get a palindrome (4133223314).

It can be divided in two parts, 20211 and 12112, that added together give a palindrome (32323).

The spelling of 2021112112 in words is "two billion, twenty-one million, one hundred twelve thousand, one hundred twelve".