110212110221 has 4 divisors (see below), whose sum is σ = 110241637692. Its totient is φ = 110182582752.

The previous prime is 110212110199. The next prime is 110212110247. The reversal of 110212110221 is 122011212011.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 27276174025 + 82935936196 = 165155^2 + 287986^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-110212110221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110212110196 and 110212110205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110212110521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14758136 + ... + 14765601.

It is an arithmetic number, because the mean of its divisors is an integer number (27560409423).

Almost surely, 2^110212110221 is an apocalyptic number.

It is an amenable number.

110212110221 is a deficient number, since it is larger than the sum of its proper divisors (29527471).

110212110221 is an equidigital number, since it uses as much as digits as its factorization.

110212110221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29527470.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 110212110221 its reverse (122011212011), we get a palindrome (232223322232).

The spelling of 110212110221 in words is "one hundred ten billion, two hundred twelve million, one hundred ten thousand, two hundred twenty-one".