110212021121 has 2 divisors, whose sum is σ = 110212021122. Its totient is φ = 110212021120.

The previous prime is 110212021067. The next prime is 110212021151. The reversal of 110212021121 is 121120212011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84599539600 + 25612481521 = 290860^2 + 160039^2 .

It is an emirp because it is prime and its reverse (121120212011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 110212021121 - 2¹⁰ = 110212020097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 110212021096 and 110212021105.

It is not a weakly prime, because it can be changed into another prime (110212021151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55106010560 + 55106010561.

It is an arithmetic number, because the mean of its divisors is an integer number (55106010561).

Almost surely, 2^110212021121 is an apocalyptic number.

It is an amenable number.

110212021121 is a deficient number, since it is larger than the sum of its proper divisors (1).

110212021121 is an equidigital number, since it uses as much as digits as its factorization.

110212021121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 110212021121 its reverse (121120212011), we get a palindrome (231332233132).

The spelling of 110212021121 in words is "one hundred ten billion, two hundred twelve million, twenty-one thousand, one hundred twenty-one".