1212011 has 2 divisors, whose sum is σ = 1212012. Its totient is φ = 1212010.

The previous prime is 1211999. The next prime is 1212017. The reversal of 1212011 is 1102121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1212011 - 2¹⁰ = 1210987 is a prime.

It is a Chen prime.

It is a plaindrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 1212011.

It is not a weakly prime, because it can be changed into another prime (1212017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606005 + 606006.

It is an arithmetic number, because the mean of its divisors is an integer number (606006).

2^1212011 is an apocalyptic number.

1212011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212011 is an equidigital number, since it uses as much as digits as its factorization.

1212011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 1212011 is about 1100.9137114234. The cubic root of 1212011 is about 106.6192247792.

Adding to 1212011 its reverse (1102121), we get a palindrome (2314132).

The spelling of 1212011 in words is "one million, two hundred twelve thousand, eleven".