110102001101221 has 4 divisors (see below), whose sum is σ = 110102030499052. Its totient is φ = 110101971703392.

The previous prime is 110102001101189. The next prime is 110102001101227. The reversal of 110102001101221 is 122101100201011.

It is a happy number.

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 13323332212996 + 96778668888225 = 3650114^2 + 9837615^2 .

It is a cyclic number.

It is not a de Polignac number, because 110102001101221 - 2⁵ = 110102001101189 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 (110102001101227) 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, 8090790 + ... + 16901623.

It is an arithmetic number, because the mean of its divisors is an integer number (27525507624763).

Almost surely, 2^{110102001101221} is an apocalyptic number.

It is an amenable number.

110102001101221 is a deficient number, since it is larger than the sum of its proper divisors (29397831).

110102001101221 is an equidigital number, since it uses as much as digits as its factorization.

110102001101221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29397830.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 110102001101221 its reverse (122101100201011), we get a palindrome (232203101302232).

The spelling of 110102001101221 in words is "one hundred ten trillion, one hundred two billion, one million, one hundred one thousand, two hundred twenty-one".