22221102203 has 12 divisors (see below), whose sum is σ = 23618706072. Its totient is φ = 20901937920.

The previous prime is 22221102191. The next prime is 22221102259. The reversal of 22221102203 is 30220112222.

It is a de Polignac number, because none of the positive numbers 2^k-22221102203 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22221102503) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 502151 + ... + 544607.

It is an arithmetic number, because the mean of its divisors is an integer number (1968225506).

Almost surely, 2^22221102203 is an apocalyptic number.

22221102203 is a deficient number, since it is larger than the sum of its proper divisors (1397603869).

22221102203 is a wasteful number, since it uses less digits than its factorization.

22221102203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44302 (or 44285 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 22221102203 its reverse (30220112222), we get a palindrome (52441214425).

The spelling of 22221102203 in words is "twenty-two billion, two hundred twenty-one million, one hundred two thousand, two hundred three".