1212122002211 has 2 divisors, whose sum is σ = 1212122002212. Its totient is φ = 1212122002210.

The previous prime is 1212122002187. The next prime is 1212122002271. The reversal of 1212122002211 is 1122002212121.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1212122002211 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1212122002211.

It is not a weakly prime, because it can be changed into another prime (1212122002271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606061001105 + 606061001106.

It is an arithmetic number, because the mean of its divisors is an integer number (606061001106).

Almost surely, 2^{1212122002211} is an apocalyptic number.

1212122002211 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212122002211 is an equidigital number, since it uses as much as digits as its factorization.

1212122002211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1212122002211 its reverse (1122002212121), we get a palindrome (2334124214332).

The spelling of 1212122002211 in words is "one trillion, two hundred twelve billion, one hundred twenty-two million, two thousand, two hundred eleven".