1212771067 has 2 divisors, whose sum is σ = 1212771068. Its totient is φ = 1212771066.

The previous prime is 1212771059. The next prime is 1212771173. The reversal of 1212771067 is 7601772121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1212771067 - 2³ = 1212771059 is a prime.

It is not a weakly prime, because it can be changed into another prime (1212771037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606385533 + 606385534.

It is an arithmetic number, because the mean of its divisors is an integer number (606385534).

Almost surely, 2^1212771067 is an apocalyptic number.

1212771067 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212771067 is an equidigital number, since it uses as much as digits as its factorization.

1212771067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8232, while the sum is 34.

The square root of 1212771067 is about 34824.8627707275. The cubic root of 1212771067 is about 1066.4150753089.

The spelling of 1212771067 in words is "one billion, two hundred twelve million, seven hundred seventy-one thousand, sixty-seven".