222335533221 has 4 divisors (see below), whose sum is σ = 296447377632. Its totient is φ = 148223688812.

The previous prime is 222335533207. The next prime is 222335533237. The reversal of 222335533221 is 122335533222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 222335533221 - 2⁶ = 222335533157 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222335553221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37055922201 + ... + 37055922206.

It is an arithmetic number, because the mean of its divisors is an integer number (74111844408).

Almost surely, 2^222335533221 is an apocalyptic number.

It is an amenable number.

222335533221 is a deficient number, since it is larger than the sum of its proper divisors (74111844411).

222335533221 is an equidigital number, since it uses as much as digits as its factorization.

222335533221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74111844410.

The product of its digits is 64800, while the sum is 33.

Subtracting from 222335533221 its reverse (122335533222), we obtain a palindrome (99999999999).

The spelling of 222335533221 in words is "two hundred twenty-two billion, three hundred thirty-five million, five hundred thirty-three thousand, two hundred twenty-one".