22121110421443 has 16 divisors (see below), whose sum is σ = 24233585650560. Its totient is φ = 20025555235200.

The previous prime is 22121110421413. The next prime is 22121110421453. The reversal of 22121110421443 is 34412401112122.

It is a cyclic number.

It is not a de Polignac number, because 22121110421443 - 2⁹ = 22121110420931 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22121110421413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50093496 + ... + 50533162.

It is an arithmetic number, because the mean of its divisors is an integer number (1514599103160).

Almost surely, 2^{22121110421443} is an apocalyptic number.

22121110421443 is a deficient number, since it is larger than the sum of its proper divisors (2112475229117).

22121110421443 is a wasteful number, since it uses less digits than its factorization.

22121110421443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458898.

The product of its (nonzero) digits is 3072, while the sum is 28.

Adding to 22121110421443 its reverse (34412401112122), we get a palindrome (56533511533565).

The spelling of 22121110421443 in words is "twenty-two trillion, one hundred twenty-one billion, one hundred ten million, four hundred twenty-one thousand, four hundred forty-three".