110212021973 has 2 divisors, whose sum is σ = 110212021974. Its totient is φ = 110212021972.

The previous prime is 110212021967. The next prime is 110212022087. The reversal of 110212021973 is 379120212011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60074990404 + 50137031569 = 245102^2 + 223913^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-110212021973 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (110212021273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55106010986 + 55106010987.

It is an arithmetic number, because the mean of its divisors is an integer number (55106010987).

Almost surely, 2^110212021973 is an apocalyptic number.

It is an amenable number.

110212021973 is a deficient number, since it is larger than the sum of its proper divisors (1).

110212021973 is an equidigital number, since it uses as much as digits as its factorization.

110212021973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 29.

Adding to 110212021973 its reverse (379120212011), we get a palindrome (489332233984).

The spelling of 110212021973 in words is "one hundred ten billion, two hundred twelve million, twenty-one thousand, nine hundred seventy-three".