43454221111 has 48 divisors (see below), whose sum is σ = 53872341600. Its totient is φ = 34848672768.

The previous prime is 43454221087. The next prime is 43454221121. The reversal of 43454221111 is 11112245434.

It is a happy number.

43454221111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 43454221111 - 2³¹ = 41306737463 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 43454221111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43454221121) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 46375435 + ... + 46376371.

It is an arithmetic number, because the mean of its divisors is an integer number (1122340450).

Almost surely, 2^43454221111 is an apocalyptic number.

43454221111 is a deficient number, since it is larger than the sum of its proper divisors (10418120489).

43454221111 is a wasteful number, since it uses less digits than its factorization.

43454221111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1536 (or 1529 counting only the distinct ones).

The product of its digits is 3840, while the sum is 28.

Adding to 43454221111 its reverse (11112245434), we get a palindrome (54566466545).

The spelling of 43454221111 in words is "forty-three billion, four hundred fifty-four million, two hundred twenty-one thousand, one hundred eleven".