221222202101 has 8 divisors (see below), whose sum is σ = 221822112384. Its totient is φ = 220622693760.

The previous prime is 221222202049. The next prime is 221222202217. The reversal of 221222202101 is 101202222122.

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 221222202101 - 2¹⁰ = 221222201077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 221222202101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221222202401) 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, 1018610 + ... + 1216556.

It is an arithmetic number, because the mean of its divisors is an integer number (27727764048).

Almost surely, 2^221222202101 is an apocalyptic number.

It is an amenable number.

221222202101 is a deficient number, since it is larger than the sum of its proper divisors (599910283).

221222202101 is a wasteful number, since it uses less digits than its factorization.

221222202101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200971.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 221222202101 its reverse (101202222122), we get a palindrome (322424424223).

The spelling of 221222202101 in words is "two hundred twenty-one billion, two hundred twenty-two million, two hundred two thousand, one hundred one".