10212102122111 has 4 divisors (see below), whose sum is σ = 10212961232352. Its totient is φ = 10211243011872.

The previous prime is 10212102122077. The next prime is 10212102122141. The reversal of 10212102122111 is 11122120121201.

10212102122111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10212102122111 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10212102122111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10212102122141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 429537290 + ... + 429561063.

It is an arithmetic number, because the mean of its divisors is an integer number (2553240308088).

Almost surely, 2^{10212102122111} is an apocalyptic number.

10212102122111 is a deficient number, since it is larger than the sum of its proper divisors (859110241).

10212102122111 is an equidigital number, since it uses as much as digits as its factorization.

10212102122111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 859110240.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 10212102122111 its reverse (11122120121201), we get a palindrome (21334222243312).

The spelling of 10212102122111 in words is "ten trillion, two hundred twelve billion, one hundred two million, one hundred twenty-two thousand, one hundred eleven".