12101011020211 has 4 divisors (see below), whose sum is σ = 12101048095312. Its totient is φ = 12100973945112.

The previous prime is 12101011020191. The next prime is 12101011020223. The reversal of 12101011020211 is 11202011010121.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12101011020211 - 2³⁷ = 11963572066739 is a prime.

It is a super-2 number, since 2×12101011020211² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12101011020191 and 12101011020200.

It is not an unprimeable number, because it can be changed into a prime (12101011050211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18043575 + ... + 18702208.

It is an arithmetic number, because the mean of its divisors is an integer number (3025262023828).

Almost surely, 2^{12101011020211} is an apocalyptic number.

12101011020211 is a deficient number, since it is larger than the sum of its proper divisors (37075101).

12101011020211 is an equidigital number, since it uses as much as digits as its factorization.

12101011020211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37075100.

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

Adding to 12101011020211 its reverse (11202011010121), we get a palindrome (23303022030332).

The spelling of 12101011020211 in words is "twelve trillion, one hundred one billion, eleven million, twenty thousand, two hundred eleven".