7212242112 has 168 divisors, whose sum is σ = 21126608496. Its totient is φ = 2163769344.

The previous prime is 7212242099. The next prime is 7212242113. The reversal of 7212242112 is 2112422127.

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

It is not an unprimeable number, because it can be changed into a prime (7212242113) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1724568 + ... + 1728744.

It is an arithmetic number, because the mean of its divisors is an integer number (125753622).

Almost surely, 2^7212242112 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 7212242112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10563304248).

7212242112 is an abundant number, since it is smaller than the sum of its proper divisors (13914366384).

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

7212242112 is a wasteful number, since it uses less digits than its factorization.

7212242112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4255 (or 4222 counting only the distinct ones).

The product of its digits is 896, while the sum is 24.

The square root of 7212242112 is about 84924.9204415288. The cubic root of 7212242112 is about 1932.0725596331.

Adding to 7212242112 its reverse (2112422127), we get a palindrome (9324664239).

The spelling of 7212242112 in words is "seven billion, two hundred twelve million, two hundred forty-two thousand, one hundred twelve".