121210120120211 has 2 divisors, whose sum is σ = 121210120120212. Its totient is φ = 121210120120210.

The previous prime is 121210120120127. The next prime is 121210120120273. The reversal of 121210120120211 is 112021021012121.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121210120120211 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121210120120211.

It is not a weakly prime, because it can be changed into another prime (121210120120711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60605060060105 + 60605060060106.

It is an arithmetic number, because the mean of its divisors is an integer number (60605060060106).

Almost surely, 2^{121210120120211} is an apocalyptic number.

121210120120211 is a deficient number, since it is larger than the sum of its proper divisors (1).

121210120120211 is an equidigital number, since it uses as much as digits as its factorization.

121210120120211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 121210120120211 its reverse (112021021012121), we get a palindrome (233231141132332).

The spelling of 121210120120211 in words is "one hundred twenty-one trillion, two hundred ten billion, one hundred twenty million, one hundred twenty thousand, two hundred eleven".