1212012047 has 2 divisors, whose sum is σ = 1212012048. Its totient is φ = 1212012046.

The previous prime is 1212012031. The next prime is 1212012073. The reversal of 1212012047 is 7402102121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1212012047 - 2⁴ = 1212012031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1212012007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606006023 + 606006024.

It is an arithmetic number, because the mean of its divisors is an integer number (606006024).

Almost surely, 2^1212012047 is an apocalyptic number.

1212012047 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212012047 is an equidigital number, since it uses as much as digits as its factorization.

1212012047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 1212012047 is about 34813.9633911452. The cubic root of 1212012047 is about 1066.1925548037.

Adding to 1212012047 its reverse (7402102121), we get a palindrome (8614114168).

The spelling of 1212012047 in words is "one billion, two hundred twelve million, twelve thousand, forty-seven".