1211412204479 has 2 divisors, whose sum is σ = 1211412204480. Its totient is φ = 1211412204478.

The previous prime is 1211412204469. The next prime is 1211412204547. The reversal of 1211412204479 is 9744022141121.

It is a weak prime.

It is an emirp because it is prime and its reverse (9744022141121) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1211412204479 is a prime.

It is a super-3 number, since 3×1211412204479³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1211412204419) 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, 605706102239 + 605706102240.

It is an arithmetic number, because the mean of its divisors is an integer number (605706102240).

Almost surely, 2^{1211412204479} is an apocalyptic number.

1211412204479 is a deficient number, since it is larger than the sum of its proper divisors (1).

1211412204479 is an equidigital number, since it uses as much as digits as its factorization.

1211412204479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256, while the sum is 38.

The spelling of 1211412204479 in words is "one trillion, two hundred eleven billion, four hundred twelve million, two hundred four thousand, four hundred seventy-nine".