221131104223 has 2 divisors, whose sum is σ = 221131104224. Its totient is φ = 221131104222.

The previous prime is 221131104169. The next prime is 221131104241. The reversal of 221131104223 is 322401131122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221131104223 - 2¹³ = 221131096031 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 221131104194 and 221131104203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221131104253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110565552111 + 110565552112.

It is an arithmetic number, because the mean of its divisors is an integer number (110565552112).

Almost surely, 2^221131104223 is an apocalyptic number.

221131104223 is a deficient number, since it is larger than the sum of its proper divisors (1).

221131104223 is an equidigital number, since it uses as much as digits as its factorization.

221131104223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 221131104223 its reverse (322401131122), we get a palindrome (543532235345).

The spelling of 221131104223 in words is "two hundred twenty-one billion, one hundred thirty-one million, one hundred four thousand, two hundred twenty-three".