221210044111 has 8 divisors (see below), whose sum is σ = 253608994080. Its totient is φ = 189010472928.

The previous prime is 221210044103. The next prime is 221210044169. The reversal of 221210044111 is 111440012122.

It is a happy number.

221210044111 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 221210044111 - 2³ = 221210044103 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 (221210044411) 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, 49842316 + ... + 49846753.

It is an arithmetic number, because the mean of its divisors is an integer number (31701124260).

Almost surely, 2^221210044111 is an apocalyptic number.

221210044111 is a deficient number, since it is larger than the sum of its proper divisors (32398949969).

221210044111 is an equidigital number, since it uses as much as digits as its factorization.

221210044111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99689393.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 221210044111 its reverse (111440012122), we get a palindrome (332650056233).

The spelling of 221210044111 in words is "two hundred twenty-one billion, two hundred ten million, forty-four thousand, one hundred eleven".