222303113221 has 24 divisors (see below), whose sum is σ = 262397099160. Its totient is φ = 187760466432.

The previous prime is 222303113209. The next prime is 222303113269. The reversal of 222303113221 is 122311303222.

It can be written as a sum of positive squares in 4 ways, for example, as 65871789025 + 156431324196 = 256655^2 + 395514^2 .

It is a de Polignac number, because none of the positive numbers 2^k-222303113221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 222303113192 and 222303113201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222303113521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1190785 + ... + 1364761.

It is an arithmetic number, because the mean of its divisors is an integer number (10933212465).

Almost surely, 2^222303113221 is an apocalyptic number.

It is an amenable number.

222303113221 is a deficient number, since it is larger than the sum of its proper divisors (40093985939).

222303113221 is a wasteful number, since it uses less digits than its factorization.

222303113221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174373 (or 174366 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 222303113221 its reverse (122311303222), we get a palindrome (344614416443).

The spelling of 222303113221 in words is "two hundred twenty-two billion, three hundred three million, one hundred thirteen thousand, two hundred twenty-one".