22013300221 has 18 divisors (see below), whose sum is σ = 25703522810. Its totient is φ = 18834879360.

The previous prime is 22013300213. The next prime is 22013300233. The reversal of 22013300221 is 12200331022.

It can be written as a sum of positive squares in 3 ways, for example, as 10454040025 + 11559260196 = 102245^2 + 107514^2 .

It is not a de Polignac number, because 22013300221 - 2³ = 22013300213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22013300195 and 22013300204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22013300521) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 279786 + ... + 349723.

Almost surely, 2^22013300221 is an apocalyptic number.

It is an amenable number.

22013300221 is a deficient number, since it is larger than the sum of its proper divisors (3690222589).

22013300221 is a wasteful number, since it uses less digits than its factorization.

22013300221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629565 (or 629537 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 22013300221 its reverse (12200331022), we get a palindrome (34213631243).

The spelling of 22013300221 in words is "twenty-two billion, thirteen million, three hundred thousand, two hundred twenty-one".