43400012211 has 24 divisors (see below), whose sum is σ = 67771800720. Its totient is φ = 26669704896.

The previous prime is 43400012209. The next prime is 43400012231. The reversal of 43400012211 is 11221000434.

43400012211 is a `hidden beast` number, since 43 + 400 + 0 + 1 + 221 + 1 = 666.

It is not a de Polignac number, because 43400012211 - 2¹ = 43400012209 is a prime.

It is a super-2 number, since 2×43400012211² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (43400012231) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 3423420 + ... + 3436073.

It is an arithmetic number, because the mean of its divisors is an integer number (2823825030).

Almost surely, 2^43400012211 is an apocalyptic number.

43400012211 is a deficient number, since it is larger than the sum of its proper divisors (24371788509).

43400012211 is a wasteful number, since it uses less digits than its factorization.

43400012211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6859555 (or 6859552 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 43400012211 its reverse (11221000434), we get a palindrome (54621012645).

The spelling of 43400012211 in words is "forty-three billion, four hundred million, twelve thousand, two hundred eleven".