221200010102221 has 8 divisors (see below), whose sum is σ = 234149168674080. Its totient is φ = 208605622998192.

The previous prime is 221200010102171. The next prime is 221200010102237. The reversal of 221200010102221 is 122201010002122.

It is a happy number.

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 221200010102221 - 2⁹ = 221200010101709 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221200010102195 and 221200010102204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221200010102251) 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, 88692865675 + ... + 88692868168.

It is an arithmetic number, because the mean of its divisors is an integer number (29268646084260).

Almost surely, 2^{221200010102221} is an apocalyptic number.

It is an amenable number.

221200010102221 is a deficient number, since it is larger than the sum of its proper divisors (12949158571859).

221200010102221 is a wasteful number, since it uses less digits than its factorization.

221200010102221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177385733915.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 221200010102221 its reverse (122201010002122), we get a palindrome (343401020104343).

The spelling of 221200010102221 in words is "two hundred twenty-one trillion, two hundred billion, ten million, one hundred two thousand, two hundred twenty-one".