121012010310211 has 2 divisors, whose sum is σ = 121012010310212. Its totient is φ = 121012010310210.

The previous prime is 121012010310209. The next prime is 121012010310223. The reversal of 121012010310211 is 112013010210121.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121012010310211 - 2¹ = 121012010310209 is a prime.

It is a super-2 number, since 2×121012010310211² (a number of 29 digits) contains 22 as substring.

Together with 121012010310209, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (121012010310241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60506005155105 + 60506005155106.

It is an arithmetic number, because the mean of its divisors is an integer number (60506005155106).

Almost surely, 2^{121012010310211} is an apocalyptic number.

121012010310211 is a deficient number, since it is larger than the sum of its proper divisors (1).

121012010310211 is an equidigital number, since it uses as much as digits as its factorization.

121012010310211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 121012010310211 its reverse (112013010210121), we get a palindrome (233025020520332).

The spelling of 121012010310211 in words is "one hundred twenty-one trillion, twelve billion, ten million, three hundred ten thousand, two hundred eleven".