223202132221221 has 64 divisors (see below), whose sum is σ = 343530832930560. Its totient is φ = 143115505827840.

The previous prime is 223202132221213. The next prime is 223202132221253. The reversal of 223202132221221 is 122122231202322.

223202132221221 is a `hidden beast` number, since 2 + 2 + 3 + 2 + 0 + 213 + 2 + 221 + 221 = 666.

It is not a de Polignac number, because 223202132221221 - 2³ = 223202132221213 is a prime.

It is a super-3 number, since 3×223202132221221³ (a number of 44 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223202132221121) 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 63 ways as a sum of consecutive naturals, for example, 30315165 + ... + 36951501.

It is an arithmetic number, because the mean of its divisors is an integer number (5367669264540).

Almost surely, 2^{223202132221221} is an apocalyptic number.

It is an amenable number.

223202132221221 is a deficient number, since it is larger than the sum of its proper divisors (120328700709339).

223202132221221 is a wasteful number, since it uses less digits than its factorization.

223202132221221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6636771 (or 6636765 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 223202132221221 its reverse (122122231202322), we get a palindrome (345324363423543).

The spelling of 223202132221221 in words is "two hundred twenty-three trillion, two hundred two billion, one hundred thirty-two million, two hundred twenty-one thousand, two hundred twenty-one".