43122222312 has 128 divisors (see below), whose sum is σ = 123031440000. Its totient is φ = 12485422080.

The previous prime is 43122222289. The next prime is 43122222317. The reversal of 43122222312 is 21322222134.

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 (43122222317) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 858862 + ... + 907682.

It is an arithmetic number, because the mean of its divisors is an integer number (961183125).

Almost surely, 2^43122222312 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 43122222312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61515720000).

43122222312 is an abundant number, since it is smaller than the sum of its proper divisors (79909217688).

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

43122222312 is a wasteful number, since it uses less digits than its factorization.

43122222312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49011 (or 49007 counting only the distinct ones).

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

Adding to 43122222312 its reverse (21322222134), we get a palindrome (64444444446).

The spelling of 43122222312 in words is "forty-three billion, one hundred twenty-two million, two hundred twenty-two thousand, three hundred twelve".