2021113112 has 16 divisors (see below), whose sum is σ = 3791209200. Its totient is φ = 1010124000.

The previous prime is 2021113111. The next prime is 2021113147. The reversal of 2021113112 is 2113111202.

It is a super-3 number, since 3×2021113112³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021113111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33764 + ... + 71987.

It is an arithmetic number, because the mean of its divisors is an integer number (236950575).

Almost surely, 2^2021113112 is an apocalyptic number.

It is an amenable number.

2021113112 is a deficient number, since it is larger than the sum of its proper divisors (1770096088).

2021113112 is a wasteful number, since it uses less digits than its factorization.

2021113112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108146 (or 108142 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 2021113112 is about 44956.7916115018. The cubic root of 2021113112 is about 1264.3390157118.

Adding to 2021113112 its reverse (2113111202), we get a palindrome (4134224314).

The spelling of 2021113112 in words is "two billion, twenty-one million, one hundred thirteen thousand, one hundred twelve".