110210120211221 has 4 divisors (see below), whose sum is σ = 110210144427744. Its totient is φ = 110210095994700.

The previous prime is 110210120211203. The next prime is 110210120211241. The reversal of 110210120211221 is 122112021012011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-110210120211221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 110210120211221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110210120211241) 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, 2995715 + ... + 15145776.

It is an arithmetic number, because the mean of its divisors is an integer number (27552536106936).

Almost surely, 2^{110210120211221} is an apocalyptic number.

It is an amenable number.

110210120211221 is a deficient number, since it is larger than the sum of its proper divisors (24216523).

110210120211221 is an equidigital number, since it uses as much as digits as its factorization.

110210120211221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24216522.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 110210120211221 its reverse (122112021012011), we get a palindrome (232322141223232).

The spelling of 110210120211221 in words is "one hundred ten trillion, two hundred ten billion, one hundred twenty million, two hundred eleven thousand, two hundred twenty-one".