22221221203 has 16 divisors (see below), whose sum is σ = 24348168000. Its totient is φ = 20185869312.

The previous prime is 22221221201. The next prime is 22221221249. The reversal of 22221221203 is 30212212222.

It is a cyclic number.

It is not a de Polignac number, because 22221221203 - 2¹ = 22221221201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22221221201) 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, 1852138 + ... + 1864096.

It is an arithmetic number, because the mean of its divisors is an integer number (1521760500).

Almost surely, 2^22221221203 is an apocalyptic number.

22221221203 is a deficient number, since it is larger than the sum of its proper divisors (2126946797).

22221221203 is a wasteful number, since it uses less digits than its factorization.

22221221203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15774.

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

Adding to 22221221203 its reverse (30212212222), we get a palindrome (52433433425).

The spelling of 22221221203 in words is "twenty-two billion, two hundred twenty-one million, two hundred twenty-one thousand, two hundred three".