23221131229 has 2 divisors, whose sum is σ = 23221131230. Its totient is φ = 23221131228.

The previous prime is 23221131211. The next prime is 23221131233. The reversal of 23221131229 is 92213112232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19043448004 + 4177683225 = 137998^2 + 64635^2 .

It is a cyclic number.

It is not a de Polignac number, because 23221131229 - 2¹¹ = 23221129181 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23221131197 and 23221131206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23221131289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11610565614 + 11610565615.

It is an arithmetic number, because the mean of its divisors is an integer number (11610565615).

Almost surely, 2^23221131229 is an apocalyptic number.

It is an amenable number.

23221131229 is a deficient number, since it is larger than the sum of its proper divisors (1).

23221131229 is an equidigital number, since it uses as much as digits as its factorization.

23221131229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 28.

The spelling of 23221131229 in words is "twenty-three billion, two hundred twenty-one million, one hundred thirty-one thousand, two hundred twenty-nine".