110112101220221 has 2 divisors, whose sum is σ = 110112101220222. Its totient is φ = 110112101220220.

The previous prime is 110112101220217. The next prime is 110112101220259. The reversal of 110112101220221 is 122022101211011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97997427403225 + 12114673816996 = 9899365^2 + 3480614^2 .

It is a cyclic number.

It is not a de Polignac number, because 110112101220221 - 2² = 110112101220217 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 110112101220221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (110112101220521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55056050610110 + 55056050610111.

It is an arithmetic number, because the mean of its divisors is an integer number (55056050610111).

Almost surely, 2^{110112101220221} is an apocalyptic number.

It is an amenable number.

110112101220221 is a deficient number, since it is larger than the sum of its proper divisors (1).

110112101220221 is an equidigital number, since it uses as much as digits as its factorization.

110112101220221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 110112101220221 its reverse (122022101211011), we get a palindrome (232134202431232).

The spelling of 110112101220221 in words is "one hundred ten trillion, one hundred twelve billion, one hundred one million, two hundred twenty thousand, two hundred twenty-one".