12101010021211 has 2 divisors, whose sum is σ = 12101010021212. Its totient is φ = 12101010021210.

The previous prime is 12101010021151. The next prime is 12101010021251. The reversal of 12101010021211 is 11212001010121.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12101010021211 - 2⁹ = 12101010020699 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12101010021191 and 12101010021200.

It is not a weakly prime, because it can be changed into another prime (12101010021251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6050505010605 + 6050505010606.

It is an arithmetic number, because the mean of its divisors is an integer number (6050505010606).

Almost surely, 2^{12101010021211} is an apocalyptic number.

12101010021211 is a deficient number, since it is larger than the sum of its proper divisors (1).

12101010021211 is an equidigital number, since it uses as much as digits as its factorization.

12101010021211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 12101010021211 its reverse (11212001010121), we get a palindrome (23313011031332).

The spelling of 12101010021211 in words is "twelve trillion, one hundred one billion, ten million, twenty-one thousand, two hundred eleven".