221111202101201 has 8 divisors (see below), whose sum is σ = 221249824288800. Its totient is φ = 220972589893728.

The previous prime is 221111202101191. The next prime is 221111202101227. The reversal of 221111202101201 is 102101202111122.

221111202101201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 221111202101201 - 2¹⁸ = 221111201839057 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 221111202101201.

It is not an unprimeable number, because it can be changed into a prime (221111202101501) 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, 42078605 + ... + 47040741.

It is an arithmetic number, because the mean of its divisors is an integer number (27656228036100).

Almost surely, 2^{221111202101201} is an apocalyptic number.

It is an amenable number.

221111202101201 is a deficient number, since it is larger than the sum of its proper divisors (138622187599).

221111202101201 is a wasteful number, since it uses less digits than its factorization.

221111202101201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4990063.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 221111202101201 its reverse (102101202111122), we get a palindrome (323212404212323).

The spelling of 221111202101201 in words is "two hundred twenty-one trillion, one hundred eleven billion, two hundred two million, one hundred one thousand, two hundred one".