110100220121 has 2 divisors, whose sum is σ = 110100220122. Its totient is φ = 110100220120.

The previous prime is 110100220073. The next prime is 110100220123. The reversal of 110100220121 is 121022001011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 101546744896 + 8553475225 = 318664^2 + 92485^2 .

It is a cyclic number.

It is not a de Polignac number, because 110100220121 - 2⁶ = 110100220057 is a prime.

Together with 110100220123, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (110100220123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55050110060 + 55050110061.

It is an arithmetic number, because the mean of its divisors is an integer number (55050110061).

Almost surely, 2^110100220121 is an apocalyptic number.

It is an amenable number.

110100220121 is a deficient number, since it is larger than the sum of its proper divisors (1).

110100220121 is an equidigital number, since it uses as much as digits as its factorization.

110100220121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 110100220121 its reverse (121022001011), we get a palindrome (231122221132).

The spelling of 110100220121 in words is "one hundred ten billion, one hundred million, two hundred twenty thousand, one hundred twenty-one".