2122443312 has 80 divisors (see below), whose sum is σ = 6241529088. Its totient is φ = 615197440.

The previous prime is 2122443311. The next prime is 2122443331. The reversal of 2122443312 is 2133442212.

It is a happy number.

It is a super-2 number, since 2×2122443312² = 9009531225307058688, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

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

It is not an unprimeable number, because it can be changed into a prime (2122443311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75243 + ... + 99530.

Almost surely, 2^2122443312 is an apocalyptic number.

2122443312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2122443312 is an abundant number, since it is smaller than the sum of its proper divisors (4119085776).

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

2122443312 is a wasteful number, since it uses less digits than its factorization.

2122443312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174818 (or 174812 counting only the distinct ones).

The product of its digits is 2304, while the sum is 24.

The square root of 2122443312 is about 46069.9827653538. The cubic root of 2122443312 is about 1285.1249833265.

Adding to 2122443312 its reverse (2133442212), we get a palindrome (4255885524).

The spelling of 2122443312 in words is "two billion, one hundred twenty-two million, four hundred forty-three thousand, three hundred twelve".