1212413641829 has 4 divisors (see below), whose sum is σ = 1305676229676. Its totient is φ = 1119151053984.

The previous prime is 1212413641819. The next prime is 1212413641837. The reversal of 1212413641829 is 9281463142121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 442626751204 + 769786890625 = 665302^2 + 877375^2 .

It is a cyclic number.

It is not a de Polignac number, because 1212413641829 - 2⁸ = 1212413641573 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1212413641829.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212413641819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46631293904 + ... + 46631293929.

It is an arithmetic number, because the mean of its divisors is an integer number (326419057419).

Almost surely, 2^{1212413641829} is an apocalyptic number.

It is an amenable number.

1212413641829 is a deficient number, since it is larger than the sum of its proper divisors (93262587847).

1212413641829 is an equidigital number, since it uses as much as digits as its factorization.

1212413641829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93262587846.

The product of its digits is 165888, while the sum is 44.

The spelling of 1212413641829 in words is "one trillion, two hundred twelve billion, four hundred thirteen million, six hundred forty-one thousand, eight hundred twenty-nine".