221000211212201 has 8 divisors (see below), whose sum is σ = 221220722515008. Its totient is φ = 220779719370000.

The previous prime is 221000211212171. The next prime is 221000211212227. The reversal of 221000211212201 is 102212112000122.

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 221000211212201 - 2¹⁰ = 221000211211177 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 221000211212201.

It is not an unprimeable number, because it can be changed into a prime (221000211212101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17911916 + ... + 27619506.

It is an arithmetic number, because the mean of its divisors is an integer number (27652590314376).

Almost surely, 2^{221000211212201} is an apocalyptic number.

It is an amenable number.

221000211212201 is a deficient number, since it is larger than the sum of its proper divisors (220511302807).

221000211212201 is a wasteful number, since it uses less digits than its factorization.

221000211212201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9730303.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 221000211212201 its reverse (102212112000122), we get a palindrome (323212323212323).

The spelling of 221000211212201 in words is "two hundred twenty-one trillion, two hundred eleven million, two hundred twelve thousand, two hundred one".