221110113322221 has 8 divisors (see below), whose sum is σ = 294815457063744. Its totient is φ = 147405755897760.

The previous prime is 221110113322211. The next prime is 221110113322223. The reversal of 221110113322221 is 122223311011122.

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

It is not a de Polignac number, because 221110113322221 - 2¹⁹ = 221110112797933 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 221110113322191 and 221110113322200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221110113322223) 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 7 ways as a sum of consecutive naturals, for example, 246056025 + ... + 246953006.

It is an arithmetic number, because the mean of its divisors is an integer number (36851932132968).

Almost surely, 2^{221110113322221} is an apocalyptic number.

It is an amenable number.

221110113322221 is a deficient number, since it is larger than the sum of its proper divisors (73705343741523).

221110113322221 is a wasteful number, since it uses less digits than its factorization.

221110113322221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493158531.

The product of its (nonzero) digits is 576, while the sum is 24.

Adding to 221110113322221 its reverse (122223311011122), we get a palindrome (343333424333343).

The spelling of 221110113322221 in words is "two hundred twenty-one trillion, one hundred ten billion, one hundred thirteen million, three hundred twenty-two thousand, two hundred twenty-one".