221122222222011 has 32 divisors (see below), whose sum is σ = 329633718374400. Its totient is φ = 130689431661600.

The previous prime is 221122222221947. The next prime is 221122222222019. The reversal of 221122222222011 is 110222222221122.

It is a happy number.

It is not a de Polignac number, because 221122222222011 - 2⁶ = 221122222221947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221122222222019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 122582911 + ... + 124373688.

It is an arithmetic number, because the mean of its divisors is an integer number (10301053699200).

Almost surely, 2^{221122222222011} is an apocalyptic number.

221122222222011 is a deficient number, since it is larger than the sum of its proper divisors (108511496152389).

221122222222011 is a wasteful number, since it uses less digits than its factorization.

221122222222011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246957287.

The product of its (nonzero) digits is 1024, while the sum is 24.

Adding to 221122222222011 its reverse (110222222221122), we get a palindrome (331344444443133).

The spelling of 221122222222011 in words is "two hundred twenty-one trillion, one hundred twenty-two billion, two hundred twenty-two million, two hundred twenty-two thousand, eleven".