10212012101111 has 4 divisors (see below), whose sum is σ = 10812718695312. Its totient is φ = 9611305506912.

The previous prime is 10212012100987. The next prime is 10212012101129. The reversal of 10212012101111 is 11110121021201.

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-10212012101111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10212012101131) 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, 300353297075 + ... + 300353297108.

It is an arithmetic number, because the mean of its divisors is an integer number (2703179673828).

Almost surely, 2^{10212012101111} is an apocalyptic number.

10212012101111 is a deficient number, since it is larger than the sum of its proper divisors (600706594201).

10212012101111 is an equidigital number, since it uses as much as digits as its factorization.

10212012101111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600706594200.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 10212012101111 its reverse (11110121021201), we get a palindrome (21322133122312).

The spelling of 10212012101111 in words is "ten trillion, two hundred twelve billion, twelve million, one hundred one thousand, one hundred eleven".