222220322231 has 4 divisors (see below), whose sum is σ = 222327729000. Its totient is φ = 222112915464.

The previous prime is 222220322183. The next prime is 222220322239. The reversal of 222220322231 is 132223022222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 222220322231 - 2¹⁴ = 222220305847 is a prime.

It is a super-2 number, since 2×222220322231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222220322197 and 222220322206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222220322239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53700281 + ... + 53704418.

It is an arithmetic number, because the mean of its divisors is an integer number (55581932250).

Almost surely, 2^222220322231 is an apocalyptic number.

222220322231 is a deficient number, since it is larger than the sum of its proper divisors (107406769).

222220322231 is a wasteful number, since it uses less digits than its factorization.

222220322231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107406768.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 222220322231 its reverse (132223022222), we get a palindrome (354443344453).

The spelling of 222220322231 in words is "two hundred twenty-two billion, two hundred twenty million, three hundred twenty-two thousand, two hundred thirty-one".