221103321022231 has 2 divisors, whose sum is σ = 221103321022232. Its totient is φ = 221103321022230.

The previous prime is 221103321022201. The next prime is 221103321022237. The reversal of 221103321022231 is 132220123301122.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221103321022231 is a prime.

It is a super-2 number, since 2×221103321022231² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 221103321022196 and 221103321022205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221103321022237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110551660511115 + 110551660511116.

It is an arithmetic number, because the mean of its divisors is an integer number (110551660511116).

Almost surely, 2^{221103321022231} is an apocalyptic number.

221103321022231 is a deficient number, since it is larger than the sum of its proper divisors (1).

221103321022231 is an equidigital number, since it uses as much as digits as its factorization.

221103321022231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 221103321022231 its reverse (132220123301122), we get a palindrome (353323444323353).

The spelling of 221103321022231 in words is "two hundred twenty-one trillion, one hundred three billion, three hundred twenty-one million, twenty-two thousand, two hundred thirty-one".