1110223122221 has 2 divisors, whose sum is σ = 1110223122222. Its totient is φ = 1110223122220.

The previous prime is 1110223122199. The next prime is 1110223122223. The reversal of 1110223122221 is 1222213220111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1099740229225 + 10482892996 = 1048685^2 + 102386^2 .

It is a cyclic number.

It is not a de Polignac number, because 1110223122221 - 2¹⁸ = 1110222860077 is a prime.

It is a super-2 number, since 2×1110223122221² (a number of 25 digits) contains 22 as substring.

Together with 1110223122223, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1110223122193 and 1110223122202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1110223122223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555111561110 + 555111561111.

It is an arithmetic number, because the mean of its divisors is an integer number (555111561111).

Almost surely, 2^{1110223122221} is an apocalyptic number.

It is an amenable number.

1110223122221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1110223122221 is an equidigital number, since it uses as much as digits as its factorization.

1110223122221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 1110223122221 its reverse (1222213220111), we get a palindrome (2332436342332).

The spelling of 1110223122221 in words is "one trillion, one hundred ten billion, two hundred twenty-three million, one hundred twenty-two thousand, two hundred twenty-one".