221002112120201 has 16 divisors (see below), whose sum is σ = 230671993543680. Its totient is φ = 211337329286160.

The previous prime is 221002112120177. The next prime is 221002112120227. The reversal of 221002112120201 is 102021211200122.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221002112120201 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 221002112120201.

It is not an unprimeable number, because it can be changed into a prime (221002112110201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1448747390 + ... + 1448899928.

It is an arithmetic number, because the mean of its divisors is an integer number (14416999596480).

Almost surely, 2^{221002112120201} is an apocalyptic number.

It is an amenable number.

221002112120201 is a deficient number, since it is larger than the sum of its proper divisors (9669881423479).

221002112120201 is a wasteful number, since it uses less digits than its factorization.

221002112120201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168836.

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

Adding to 221002112120201 its reverse (102021211200122), we get a palindrome (323023323320323).

The spelling of 221002112120201 in words is "two hundred twenty-one trillion, two billion, one hundred twelve million, one hundred twenty thousand, two hundred one".