221222120201 has 16 divisors (see below), whose sum is σ = 222940876800. Its totient is φ = 219511954368.

The previous prime is 221222120179. The next prime is 221222120213. The reversal of 221222120201 is 102021222122.

It is a happy number.

221222120201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 221222120201 - 2³⁰ = 220148378377 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 221222120201.

It is not an unprimeable number, because it can be changed into a prime (221222120701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97496495 + ... + 97498763.

It is an arithmetic number, because the mean of its divisors is an integer number (13933804800).

Almost surely, 2^221222120201 is an apocalyptic number.

It is an amenable number.

221222120201 is a deficient number, since it is larger than the sum of its proper divisors (1718756599).

221222120201 is a wasteful number, since it uses less digits than its factorization.

221222120201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3848.

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

Adding to 221222120201 its reverse (102021222122), we get a palindrome (323243342323).

The spelling of 221222120201 in words is "two hundred twenty-one billion, two hundred twenty-two million, one hundred twenty thousand, two hundred one".