221002220111011 has 16 divisors (see below), whose sum is σ = 223616663262720. Its totient is φ = 218396890172160.

The previous prime is 221002220110961. The next prime is 221002220111017. The reversal of 221002220111011 is 110111022200122.

It is a cyclic number.

It is not a de Polignac number, because 221002220111011 - 2¹³ = 221002220102819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221002220111017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 469102291 + ... + 469573171.

It is an arithmetic number, because the mean of its divisors is an integer number (13976041453920).

Almost surely, 2^{221002220111011} is an apocalyptic number.

221002220111011 is a deficient number, since it is larger than the sum of its proper divisors (2614443151709).

221002220111011 is a wasteful number, since it uses less digits than its factorization.

221002220111011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480546.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 221002220111011 its reverse (110111022200122), we get a palindrome (331113242311133).

The spelling of 221002220111011 in words is "two hundred twenty-one trillion, two billion, two hundred twenty million, one hundred eleven thousand, eleven".