1212021100211 has 2 divisors, whose sum is σ = 1212021100212. Its totient is φ = 1212021100210.

The previous prime is 1212021100163. The next prime is 1212021100231. The reversal of 1212021100211 is 1120011202121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1212021100211 - 2¹⁰ = 1212021099187 is a prime.

It is not a weakly prime, because it can be changed into another prime (1212021100231) 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, 606010550105 + 606010550106.

It is an arithmetic number, because the mean of its divisors is an integer number (606010550106).

Almost surely, 2^{1212021100211} is an apocalyptic number.

1212021100211 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212021100211 is an equidigital number, since it uses as much as digits as its factorization.

1212021100211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1212021100211 its reverse (1120011202121), we get a palindrome (2332032302332).

The spelling of 1212021100211 in words is "one trillion, two hundred twelve billion, twenty-one million, one hundred thousand, two hundred eleven".