2112122212 has 12 divisors (see below), whose sum is σ = 3730124860. Its totient is φ = 1046372256.

The previous prime is 2112122209. The next prime is 2112122231. The reversal of 2112122212 is 2122212112.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 620308836 + 1491813376 = 24906^2 + 38624^2 .

It is a super-2 number, since 2×2112122212² = 8922120476847545888, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2421723 + ... + 2422594.

Almost surely, 2^2112122212 is an apocalyptic number.

It is an amenable number.

2112122212 is a deficient number, since it is larger than the sum of its proper divisors (1618002648).

2112122212 is a wasteful number, since it uses less digits than its factorization.

2112122212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4844430 (or 4844428 counting only the distinct ones).

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

The square root of 2112122212 is about 45957.8308017252. The cubic root of 2112122212 is about 1283.0384789443.

Adding to 2112122212 its reverse (2122212112), we get a palindrome (4234334324).

The spelling of 2112122212 in words is "two billion, one hundred twelve million, one hundred twenty-two thousand, two hundred twelve".