110110102011221 has 4 divisors (see below), whose sum is σ = 118580109858252. Its totient is φ = 101640094164192.

The previous prime is 110110102011109. The next prime is 110110102011227. The reversal of 110110102011221 is 122110201011011.

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 25253027007121 + 84857075004100 = 5025239^2 + 9211790^2 .

It is a cyclic number.

It is not a de Polignac number, because 110110102011221 - 2³⁰ = 110109028269397 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110110102011196 and 110110102011205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110110102011227) 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, 4235003923496 + ... + 4235003923521.

It is an arithmetic number, because the mean of its divisors is an integer number (29645027464563).

Almost surely, 2^{110110102011221} is an apocalyptic number.

It is an amenable number.

110110102011221 is a deficient number, since it is larger than the sum of its proper divisors (8470007847031).

110110102011221 is an equidigital number, since it uses as much as digits as its factorization.

110110102011221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8470007847030.

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

Adding to 110110102011221 its reverse (122110201011011), we get a palindrome (232220303022232).

The spelling of 110110102011221 in words is "one hundred ten trillion, one hundred ten billion, one hundred two million, eleven thousand, two hundred twenty-one".