110203222021 has 2 divisors, whose sum is σ = 110203222022. Its totient is φ = 110203222020.

The previous prime is 110203222013. The next prime is 110203222037. The reversal of 110203222021 is 120222302011.

It is a happy number.

It is an a-pointer prime, because the next prime (110203222037) can be obtained adding 110203222021 to its sum of digits (16).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101704225921 + 8498996100 = 318911^2 + 92190^2 .

It is a cyclic number.

It is not a de Polignac number, because 110203222021 - 2³ = 110203222013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 110203221986 and 110203222004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (110203222091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55101611010 + 55101611011.

It is an arithmetic number, because the mean of its divisors is an integer number (55101611011).

Almost surely, 2^110203222021 is an apocalyptic number.

It is an amenable number.

110203222021 is a deficient number, since it is larger than the sum of its proper divisors (1).

110203222021 is an equidigital number, since it uses as much as digits as its factorization.

110203222021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 110203222021 its reverse (120222302011), we get a palindrome (230425524032).

The spelling of 110203222021 in words is "one hundred ten billion, two hundred three million, two hundred twenty-two thousand, twenty-one".