7443212112 has 180 divisors, whose sum is σ = 24281633376. Its totient is φ = 2122243200.

The previous prime is 7443212111. The next prime is 7443212129. The reversal of 7443212112 is 2112123447.

7443212112 is a `hidden beast` number, since 7 + 443 + 2 + 1 + 211 + 2 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7443212111) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5128987 + ... + 5130437.

Almost surely, 2^7443212112 is an apocalyptic number.

7443212112 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7443212112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12140816688).

7443212112 is an abundant number, since it is smaller than the sum of its proper divisors (16838421264).

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

7443212112 is a wasteful number, since it uses less digits than its factorization.

7443212112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2206 (or 2190 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 7443212112 is about 86274.0523680208. The cubic root of 7443212112 is about 1952.4809195882.

Adding to 7443212112 its reverse (2112123447), we get a palindrome (9555335559).

The spelling of 7443212112 in words is "seven billion, four hundred forty-three million, two hundred twelve thousand, one hundred twelve".