1110212210221 has 2 divisors, whose sum is σ = 1110212210222. Its totient is φ = 1110212210220.

The previous prime is 1110212210213. The next prime is 1110212210249. The reversal of 1110212210221 is 1220122120111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1077680676996 + 32531533225 = 1038114^2 + 180365^2 .

It is a cyclic number.

It is not a de Polignac number, because 1110212210221 - 2³ = 1110212210213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1110212210195 and 1110212210204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1110212210521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555106105110 + 555106105111.

It is an arithmetic number, because the mean of its divisors is an integer number (555106105111).

Almost surely, 2^{1110212210221} is an apocalyptic number.

It is an amenable number.

1110212210221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1110212210221 is an equidigital number, since it uses as much as digits as its factorization.

1110212210221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1110212210221 its reverse (1220122120111), we get a palindrome (2330334330332).

The spelling of 1110212210221 in words is "one trillion, one hundred ten billion, two hundred twelve million, two hundred ten thousand, two hundred twenty-one".