221220200111 has 8 divisors (see below), whose sum is σ = 223585305600. Its totient is φ = 218858522400.

The previous prime is 221220200107. The next prime is 221220200137. The reversal of 221220200111 is 111002022122.

221220200111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 221220200111 - 2² = 221220200107 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221220200161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 727076 + ... + 985433.

It is an arithmetic number, because the mean of its divisors is an integer number (27948163200).

Almost surely, 2^221220200111 is an apocalyptic number.

221220200111 is a deficient number, since it is larger than the sum of its proper divisors (2365105489).

221220200111 is a wasteful number, since it uses less digits than its factorization.

221220200111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1713889.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 221220200111 its reverse (111002022122), we get a palindrome (332222222233).

The spelling of 221220200111 in words is "two hundred twenty-one billion, two hundred twenty million, two hundred thousand, one hundred eleven".