110221212111 has 4 divisors (see below), whose sum is σ = 146961616152. Its totient is φ = 73480808072.

The previous prime is 110221212071. The next prime is 110221212133. The reversal of 110221212111 is 111212122011.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 110221212111 - 2⁶ = 110221212047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110221212181) 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, 18370202016 + ... + 18370202021.

It is an arithmetic number, because the mean of its divisors is an integer number (36740404038).

Almost surely, 2^110221212111 is an apocalyptic number.

110221212111 is a deficient number, since it is larger than the sum of its proper divisors (36740404041).

110221212111 is an equidigital number, since it uses as much as digits as its factorization.

110221212111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36740404040.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 110221212111 its reverse (111212122011), we get a palindrome (221433334122).

The spelling of 110221212111 in words is "one hundred ten billion, two hundred twenty-one million, two hundred twelve thousand, one hundred eleven".