221100022220011 has 16 divisors (see below), whose sum is σ = 245289221441280. Its totient is φ = 197592385344480.

The previous prime is 221100022219997. The next prime is 221100022220101. The reversal of 221100022220011 is 110022220001122.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 221100022220011 - 2⁹ = 221100022219499 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 (221100022290011) 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 15 ways as a sum of consecutive naturals, for example, 185700085 + ... + 186886921.

It is an arithmetic number, because the mean of its divisors is an integer number (15330576340080).

Almost surely, 2^{221100022220011} is an apocalyptic number.

221100022220011 is a deficient number, since it is larger than the sum of its proper divisors (24189199221269).

221100022220011 is a wasteful number, since it uses less digits than its factorization.

221100022220011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1473954.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 221100022220011 its reverse (110022220001122), we get a palindrome (331122242221133).

The spelling of 221100022220011 in words is "two hundred twenty-one trillion, one hundred billion, twenty-two million, two hundred twenty thousand, eleven".