43221044121 has 4 divisors (see below), whose sum is σ = 57628058832. Its totient is φ = 28814029412.

The previous prime is 43221044117. The next prime is 43221044197. The reversal of 43221044121 is 12144012234.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 43221044121 - 2² = 43221044117 is a prime.

It is a super-3 number, since 3×43221044121³ (a number of 33 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 43221044091 and 43221044100.

It is not an unprimeable number, because it can be changed into a prime (43221044821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7203507351 + ... + 7203507356.

It is an arithmetic number, because the mean of its divisors is an integer number (14407014708).

Almost surely, 2^43221044121 is an apocalyptic number.

It is an amenable number.

43221044121 is a deficient number, since it is larger than the sum of its proper divisors (14407014711).

43221044121 is a wasteful number, since it uses less digits than its factorization.

43221044121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14407014710.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 43221044121 its reverse (12144012234), we get a palindrome (55365056355).

The spelling of 43221044121 in words is "forty-three billion, two hundred twenty-one million, forty-four thousand, one hundred twenty-one".