1212331131229 has 2 divisors, whose sum is σ = 1212331131230. Its totient is φ = 1212331131228.

The previous prime is 1212331131157. The next prime is 1212331131233. The reversal of 1212331131229 is 9221311332121.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 692348805625 + 519982325604 = 832075^2 + 721098^2 .

It is a cyclic number.

It is not a de Polignac number, because 1212331131229 - 2¹³ = 1212331123037 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1212331131229.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1212331131029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606165565614 + 606165565615.

It is an arithmetic number, because the mean of its divisors is an integer number (606165565615).

Almost surely, 2^{1212331131229} is an apocalyptic number.

It is an amenable number.

1212331131229 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212331131229 is an equidigital number, since it uses as much as digits as its factorization.

1212331131229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888, while the sum is 31.

The spelling of 1212331131229 in words is "one trillion, two hundred twelve billion, three hundred thirty-one million, one hundred thirty-one thousand, two hundred twenty-nine".