1212001171 has 2 divisors, whose sum is σ = 1212001172. Its totient is φ = 1212001170.

The previous prime is 1212001163. The next prime is 1212001177. The reversal of 1212001171 is 1711002121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1212001171 - 2³ = 1212001163 is a prime.

It is not a weakly prime, because it can be changed into another prime (1212001177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606000585 + 606000586.

It is an arithmetic number, because the mean of its divisors is an integer number (606000586).

Almost surely, 2^1212001171 is an apocalyptic number.

1212001171 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212001171 is an equidigital number, since it uses as much as digits as its factorization.

1212001171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28, while the sum is 16.

The square root of 1212001171 is about 34813.8071891024. The cubic root of 1212001171 is about 1066.1893656316.

Adding to 1212001171 its reverse (1711002121), we get a palindrome (2923003292).

The spelling of 1212001171 in words is "one billion, two hundred twelve million, one thousand, one hundred seventy-one".