1211213133047 has 2 divisors, whose sum is σ = 1211213133048. Its totient is φ = 1211213133046.

The previous prime is 1211213133043. The next prime is 1211213133131. The reversal of 1211213133047 is 7403313121121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1211213133047 - 2² = 1211213133043 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1211213133043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605606566523 + 605606566524.

It is an arithmetic number, because the mean of its divisors is an integer number (605606566524).

Almost surely, 2^{1211213133047} is an apocalyptic number.

1211213133047 is a deficient number, since it is larger than the sum of its proper divisors (1).

1211213133047 is an equidigital number, since it uses as much as digits as its factorization.

1211213133047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 29.

Adding to 1211213133047 its reverse (7403313121121), we get a palindrome (8614526254168).

The spelling of 1211213133047 in words is "one trillion, two hundred eleven billion, two hundred thirteen million, one hundred thirty-three thousand, forty-seven".