221233211102221 has 8 divisors (see below), whose sum is σ = 224971010726400. Its totient is φ = 217518845958960.

The previous prime is 221233211102203. The next prime is 221233211102237. The reversal of 221233211102221 is 122201112332122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 221233211102221 - 2⁹ = 221233211101709 is a prime.

It is a super-2 number, since 2×221233211102221² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221233211102201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5858601190 + ... + 5858638951.

It is an arithmetic number, because the mean of its divisors is an integer number (28121376340800).

Almost surely, 2^{221233211102221} is an apocalyptic number.

It is an amenable number.

221233211102221 is a deficient number, since it is larger than the sum of its proper divisors (3737799624179).

221233211102221 is a wasteful number, since it uses less digits than its factorization.

221233211102221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11717240459.

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 221233211102221 its reverse (122201112332122), we get a palindrome (343434323434343).

The spelling of 221233211102221 in words is "two hundred twenty-one trillion, two hundred thirty-three billion, two hundred eleven million, one hundred two thousand, two hundred twenty-one".