22102001443 has 4 divisors (see below), whose sum is σ = 22144262008. Its totient is φ = 22059740880.

The previous prime is 22102001437. The next prime is 22102001489. The reversal of 22102001443 is 34410020122.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22102001443 - 2³³ = 13512066851 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22102001443.

It is not an unprimeable number, because it can be changed into a prime (22102001413) 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, 21129498 + ... + 21130543.

It is an arithmetic number, because the mean of its divisors is an integer number (5536065502).

Almost surely, 2^22102001443 is an apocalyptic number.

22102001443 is a deficient number, since it is larger than the sum of its proper divisors (42260565).

22102001443 is an equidigital number, since it uses as much as digits as its factorization.

22102001443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42260564.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 22102001443 its reverse (34410020122), we get a palindrome (56512021565).

The spelling of 22102001443 in words is "twenty-two billion, one hundred two million, one thousand, four hundred forty-three".