110120210000221 has 2 divisors, whose sum is σ = 110120210000222. Its totient is φ = 110120210000220.

The previous prime is 110120210000219. The next prime is 110120210000231. The reversal of 110120210000221 is 122000012021011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78421846183321 + 31698363816900 = 8855611^2 + 5630130^2 .

It is a cyclic number.

It is not a de Polignac number, because 110120210000221 - 2¹ = 110120210000219 is a prime.

Together with 110120210000219, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (110120210000231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55060105000110 + 55060105000111.

It is an arithmetic number, because the mean of its divisors is an integer number (55060105000111).

Almost surely, 2^{110120210000221} is an apocalyptic number.

It is an amenable number.

110120210000221 is a deficient number, since it is larger than the sum of its proper divisors (1).

110120210000221 is an equidigital number, since it uses as much as digits as its factorization.

110120210000221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 110120210000221 its reverse (122000012021011), we get a palindrome (232120222021232).

The spelling of 110120210000221 in words is "one hundred ten trillion, one hundred twenty billion, two hundred ten million, two hundred twenty-one", and thus it is an aban number.