43154112212 has 12 divisors (see below), whose sum is σ = 75574390836. Its totient is φ = 21561429120.

The previous prime is 43154112151. The next prime is 43154112223. The reversal of 43154112212 is 21221145134.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 24471596356 + 18682515856 = 156434^2 + 136684^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3900533 + ... + 3911580.

It is an arithmetic number, because the mean of its divisors is an integer number (6297865903).

Almost surely, 2^43154112212 is an apocalyptic number.

It is an amenable number.

43154112212 is a deficient number, since it is larger than the sum of its proper divisors (32420278624).

43154112212 is a wasteful number, since it uses less digits than its factorization.

43154112212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7813498 (or 7813496 counting only the distinct ones).

The product of its digits is 1920, while the sum is 26.

Adding to 43154112212 its reverse (21221145134), we get a palindrome (64375257346).

The spelling of 43154112212 in words is "forty-three billion, one hundred fifty-four million, one hundred twelve thousand, two hundred twelve".