223068442221 has 12 divisors (see below), whose sum is σ = 333320661180. Its totient is φ = 143584284480.

The previous prime is 223068442189. The next prime is 223068442237. The reversal of 223068442221 is 122244860322.

223068442221 is a `hidden beast` number, since 223 + 0 + 6 + 8 + 4 + 422 + 2 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 37195365321 + 185873076900 = 192861^2 + 431130^2 .

It is not a de Polignac number, because 223068442221 - 2⁵ = 223068442189 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 (223068442271) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 427333920 + ... + 427334441.

It is an arithmetic number, because the mean of its divisors is an integer number (27776721765).

Almost surely, 2^223068442221 is an apocalyptic number.

It is an amenable number.

223068442221 is a deficient number, since it is larger than the sum of its proper divisors (110252218959).

223068442221 is a wasteful number, since it uses less digits than its factorization.

223068442221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 854668396 (or 854668393 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 36.

The spelling of 223068442221 in words is "two hundred twenty-three billion, sixty-eight million, four hundred forty-two thousand, two hundred twenty-one".