1212000047 has 2 divisors, whose sum is σ = 1212000048. Its totient is φ = 1212000046.

The previous prime is 1212000017. The next prime is 1212000071. The reversal of 1212000047 is 7400002121.

It is a strong prime.

It is an emirp because it is prime and its reverse (7400002121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1212000047 - 2⁶ = 1211999983 is a prime.

It is a super-3 number, since 3×1212000047³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 1211999989 and 1212000034.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1212000017) 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 as a sum of consecutive naturals, namely, 606000023 + 606000024.

It is an arithmetic number, because the mean of its divisors is an integer number (606000024).

Almost surely, 2^1212000047 is an apocalyptic number.

1212000047 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212000047 is an equidigital number, since it uses as much as digits as its factorization.

1212000047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 1212000047 is about 34813.7910460783. The cubic root of 1212000047 is about 1066.1890360397.

Adding to 1212000047 its reverse (7400002121), we get a palindrome (8612002168).

The spelling of 1212000047 in words is "one billion, two hundred twelve million, forty-seven", and thus it is an aban number.