2212122112 has 40 divisors (see below), whose sum is σ = 4431464136. Its totient is φ = 1103173632.

The previous prime is 2212122097. The next prime is 2212122113. The reversal of 2212122112 is 2112212122.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212122113) 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, 197823 + ... + 208705.

Almost surely, 2^2212122112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2212122112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2215732068).

2212122112 is an abundant number, since it is smaller than the sum of its proper divisors (2219342024).

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

2212122112 is an equidigital number, since it uses as much as digits as its factorization.

2212122112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11298 (or 11282 counting only the distinct ones).

The product of its digits is 64, while the sum is 16.

The square root of 2212122112 is about 47033.2022299141. The cubic root of 2212122112 is about 1302.9758478368.

Adding to 2212122112 its reverse (2112212122), we get a palindrome (4324334234).

The spelling of 2212122112 in words is "two billion, two hundred twelve million, one hundred twenty-two thousand, one hundred twelve".