221222211100201 has 16 divisors (see below), whose sum is σ = 228428083017216. Its totient is φ = 214020699120000.

The previous prime is 221222211100109. The next prime is 221222211100229. The reversal of 221222211100201 is 102001112222122.

It is not a de Polignac number, because 221222211100201 - 2¹⁹ = 221222210575913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221222211100301) 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, 4298806611 + ... + 4298858071.

It is an arithmetic number, because the mean of its divisors is an integer number (14276755188576).

Almost surely, 2^{221222211100201} is an apocalyptic number.

It is an amenable number.

221222211100201 is a deficient number, since it is larger than the sum of its proper divisors (7205871917015).

221222211100201 is a wasteful number, since it uses less digits than its factorization.

221222211100201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91104.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 221222211100201 its reverse (102001112222122), we get a palindrome (323223323322323).

The spelling of 221222211100201 in words is "two hundred twenty-one trillion, two hundred twenty-two billion, two hundred eleven million, one hundred thousand, two hundred one".