43421215122 has 48 divisors (see below), whose sum is σ = 94692117312. Its totient is φ = 14379729120.

The previous prime is 43421215081. The next prime is 43421215157. The reversal of 43421215122 is 22151212434.

43421215122 is a `hidden beast` number, since 4 + 3 + 421 + 215 + 1 + 22 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1978972 + ... + 2000792.

It is an arithmetic number, because the mean of its divisors is an integer number (1972752444).

Almost surely, 2^43421215122 is an apocalyptic number.

43421215122 is an abundant number, since it is smaller than the sum of its proper divisors (51270902190).

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

43421215122 is a wasteful number, since it uses less digits than its factorization.

43421215122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22543 (or 22540 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

Adding to 43421215122 its reverse (22151212434), we get a palindrome (65572427556).

The spelling of 43421215122 in words is "forty-three billion, four hundred twenty-one million, two hundred fifteen thousand, one hundred twenty-two".