212101000012111 has 8 divisors (see below), whose sum is σ = 242401878097920. Its totient is φ = 181800305733048.

The previous prime is 212101000012093. The next prime is 212101000012141. The reversal of 212101000012111 is 111210000101212.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212101000012111 - 2²⁹ = 212100463141199 is a prime.

It is a super-2 number, since 2×212101000012111² (a number of 29 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 = 212101000012091 and 212101000012100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212101000012141) 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 7 ways as a sum of consecutive naturals, for example, 43470031 + ... + 48102448.

It is an arithmetic number, because the mean of its divisors is an integer number (30300234762240).

Almost surely, 2^{212101000012111} is an apocalyptic number.

212101000012111 is a deficient number, since it is larger than the sum of its proper divisors (30300878085809).

212101000012111 is an equidigital number, since it uses as much as digits as its factorization.

212101000012111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91903373.

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

Adding to 212101000012111 its reverse (111210000101212), we get a palindrome (323311000113323).

The spelling of 212101000012111 in words is "two hundred twelve trillion, one hundred one billion, twelve thousand, one hundred eleven".