222334312221 has 24 divisors (see below), whose sum is σ = 382985815680. Its totient is φ = 121524343776.

The previous prime is 222334312217. The next prime is 222334312237. The reversal of 222334312221 is 122213433222.

222334312221 is a `hidden beast` number, since 2 + 2 + 2 + 3 + 3 + 431 + 2 + 221 = 666.

222334312221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 222334312221 - 2² = 222334312217 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222334312261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 76718466 + ... + 76721363.

It is an arithmetic number, because the mean of its divisors is an integer number (15957742320).

Almost surely, 2^222334312221 is an apocalyptic number.

222334312221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

222334312221 is a deficient number, since it is larger than the sum of its proper divisors (160651503459).

222334312221 is a wasteful number, since it uses less digits than its factorization.

222334312221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153439865 (or 153439862 counting only the distinct ones).

The product of its digits is 6912, while the sum is 27.

Adding to 222334312221 its reverse (122213433222), we get a palindrome (344547745443).

The spelling of 222334312221 in words is "two hundred twenty-two billion, three hundred thirty-four million, three hundred twelve thousand, two hundred twenty-one".