221110010021111 has 8 divisors (see below), whose sum is σ = 224061331443264. Its totient is φ = 218173631999200.

The previous prime is 221110010021093. The next prime is 221110010021213. The reversal of 221110010021111 is 111120010011122.

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 221110010021111 - 2¹⁰ = 221110010020087 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 (221110010021911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3735820271 + ... + 3735879456.

It is an arithmetic number, because the mean of its divisors is an integer number (28007666430408).

Almost surely, 2^{221110010021111} is an apocalyptic number.

221110010021111 is a deficient number, since it is larger than the sum of its proper divisors (2951321422153).

221110010021111 is a wasteful number, since it uses less digits than its factorization.

221110010021111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7471700121.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 221110010021111 its reverse (111120010011122), we get a palindrome (332230020032233).

The spelling of 221110010021111 in words is "two hundred twenty-one trillion, one hundred ten billion, ten million, twenty-one thousand, one hundred eleven".