221111002222211 has 16 divisors (see below), whose sum is σ = 234169685084160. Its totient is φ = 208058118341760.

The previous prime is 221111002222169. The next prime is 221111002222309. The reversal of 221111002222211 is 112222200111122.

221111002222211 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 221111002222211 - 2²⁶ = 221110935113347 is a prime.

It is a Duffinian number.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (221111002222111) 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, 2136885206 + ... + 2136988676.

It is an arithmetic number, because the mean of its divisors is an integer number (14635605317760).

Almost surely, 2^{221111002222211} is an apocalyptic number.

221111002222211 is a deficient number, since it is larger than the sum of its proper divisors (13058682861949).

221111002222211 is a wasteful number, since it uses less digits than its factorization.

221111002222211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130274.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 221111002222211 its reverse (112222200111122), we get a palindrome (333333202333333).

The spelling of 221111002222211 in words is "two hundred twenty-one trillion, one hundred eleven billion, two million, two hundred twenty-two thousand, two hundred eleven".