2021122112 has 56 divisors (see below), whose sum is σ = 4470135840. Its totient is φ = 901048320.

The previous prime is 2021122111. The next prime is 2021122121. The reversal of 2021122112 is 2112211202.

It is not an unprimeable number, because it can be changed into a prime (2021122111) 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, 28214 + ... + 69557.

Almost surely, 2^2021122112 is an apocalyptic number.

It is an amenable number.

2021122112 is an abundant number, since it is smaller than the sum of its proper divisors (2449013728).

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

2021122112 is a wasteful number, since it uses less digits than its factorization.

2021122112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97819 (or 97809 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 2021122112 is about 44956.8917075013. The cubic root of 2021122112 is about 1264.3408924061.

Adding to 2021122112 its reverse (2112211202), we get a palindrome (4133333314).

The spelling of 2021122112 in words is "two billion, twenty-one million, one hundred twenty-two thousand, one hundred twelve".