222233213221 has 16 divisors (see below), whose sum is σ = 230261065200. Its totient is φ = 214230016000.

The previous prime is 222233213179. The next prime is 222233213297. The reversal of 222233213221 is 122312332222.

It can be written as a sum of positive squares in 8 ways, for example, as 58866890625 + 163366322596 = 242625^2 + 404186^2 .

It is a cyclic number.

It is not a de Polignac number, because 222233213221 - 2⁷ = 222233213093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222233013221) 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, 77675331 + ... + 77678191.

It is an arithmetic number, because the mean of its divisors is an integer number (14391316575).

Almost surely, 2^222233213221 is an apocalyptic number.

It is an amenable number.

222233213221 is a deficient number, since it is larger than the sum of its proper divisors (8027851979).

222233213221 is a wasteful number, since it uses less digits than its factorization.

222233213221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6200.

The product of its digits is 3456, while the sum is 25.

Adding to 222233213221 its reverse (122312332222), we get a palindrome (344545545443).

The spelling of 222233213221 in words is "two hundred twenty-two billion, two hundred thirty-three million, two hundred thirteen thousand, two hundred twenty-one".