22212222203 has 4 divisors (see below), whose sum is σ = 22238141640. Its totient is φ = 22186302768.

The previous prime is 22212222199. The next prime is 22212222217. The reversal of 22212222203 is 30222221222.

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 22212222203 - 2² = 22212222199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22212222223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12958433 + ... + 12960146.

It is an arithmetic number, because the mean of its divisors is an integer number (5559535410).

Almost surely, 2^22212222203 is an apocalyptic number.

22212222203 is a deficient number, since it is larger than the sum of its proper divisors (25919437).

22212222203 is an equidigital number, since it uses as much as digits as its factorization.

22212222203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25919436.

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 22212222203 its reverse (30222221222), we get a palindrome (52434443425).

The spelling of 22212222203 in words is "twenty-two billion, two hundred twelve million, two hundred twenty-two thousand, two hundred three".