10121021211211 has 2 divisors, whose sum is σ = 10121021211212. Its totient is φ = 10121021211210.

The previous prime is 10121021211143. The next prime is 10121021211227. The reversal of 10121021211211 is 11211212012101.

It is an a-pointer prime, because the next prime (10121021211227) can be obtained adding 10121021211211 to its sum of digits (16).

It is a strong prime.

It is an emirp because it is prime and its reverse (11211212012101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10121021211211 - 2¹³ = 10121021203019 is a prime.

It is not a weakly prime, because it can be changed into another prime (10121021211251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5060510605605 + 5060510605606.

It is an arithmetic number, because the mean of its divisors is an integer number (5060510605606).

Almost surely, 2^{10121021211211} is an apocalyptic number.

10121021211211 is a deficient number, since it is larger than the sum of its proper divisors (1).

10121021211211 is an equidigital number, since it uses as much as digits as its factorization.

10121021211211 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 16.

Adding to 10121021211211 its reverse (11211212012101), we get a palindrome (21332233223312).

The spelling of 10121021211211 in words is "ten trillion, one hundred twenty-one billion, twenty-one million, two hundred eleven thousand, two hundred eleven".