1213233331229 has 2 divisors, whose sum is σ = 1213233331230. Its totient is φ = 1213233331228.

The previous prime is 1213233331127. The next prime is 1213233331241. The reversal of 1213233331229 is 9221333323121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1005361166329 + 207872164900 = 1002677^2 + 455930^2 .

It is a cyclic number.

It is not a de Polignac number, because 1213233331229 - 2¹² = 1213233327133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1213233331829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606616665614 + 606616665615.

It is an arithmetic number, because the mean of its divisors is an integer number (606616665615).

Almost surely, 2^{1213233331229} is an apocalyptic number.

It is an amenable number.

1213233331229 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213233331229 is an equidigital number, since it uses as much as digits as its factorization.

1213233331229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34992, while the sum is 35.

The spelling of 1213233331229 in words is "one trillion, two hundred thirteen billion, two hundred thirty-three million, three hundred thirty-one thousand, two hundred twenty-nine".