2212112128 has 18 divisors (see below), whose sum is σ = 4415583704. Its totient is φ = 1106055936.

The previous prime is 2212112093. The next prime is 2212112129. The reversal of 2212112128 is 8212112122.

It is a nude number because it is divisible by every one of its digits and also a Zuckerman number because it is divisible by the product of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 2212112099 and 2212112108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212112129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4320276 + ... + 4320787.

Almost surely, 2^2212112128 is an apocalyptic number.

It is an amenable number.

2212112128 is a deficient number, since it is larger than the sum of its proper divisors (2203471576).

2212112128 is an frugal number, since it uses more digits than its factorization.

2212112128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8641079 (or 8641065 counting only the distinct ones).

The product of its digits is 256, while the sum is 22.

The square root of 2212112128 is about 47033.0960920074. The cubic root of 2212112128 is about 1302.9738875878.

The spelling of 2212112128 in words is "two billion, two hundred twelve million, one hundred twelve thousand, one hundred twenty-eight".