223022100221 has 16 divisors (see below), whose sum is σ = 234589914240. Its totient is φ = 211724694720.

The previous prime is 223022100209. The next prime is 223022100229. The reversal of 223022100221 is 122001220322.

It is a cyclic number.

It is not a de Polignac number, because 223022100221 - 2⁶ = 223022100157 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 223022100221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223022100229) 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, 945080 + ... + 1157246.

It is an arithmetic number, because the mean of its divisors is an integer number (14661869640).

Almost surely, 2^223022100221 is an apocalyptic number.

It is an amenable number.

223022100221 is a deficient number, since it is larger than the sum of its proper divisors (11567814019).

223022100221 is a wasteful number, since it uses less digits than its factorization.

223022100221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212804.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 223022100221 its reverse (122001220322), we get a palindrome (345023320543).

The spelling of 223022100221 in words is "two hundred twenty-three billion, twenty-two million, one hundred thousand, two hundred twenty-one".