212001112021111 has 16 divisors (see below), whose sum is σ = 258532615763200. Its totient is φ = 169793042228928.

The previous prime is 212001112021099. The next prime is 212001112021133. The reversal of 212001112021111 is 111120211100212.

212001112021111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212001112021111 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 (212001112021411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10917752781 + ... + 10917772198.

It is an arithmetic number, because the mean of its divisors is an integer number (16158288485200).

Almost surely, 2^{212001112021111} is an apocalyptic number.

212001112021111 is a deficient number, since it is larger than the sum of its proper divisors (46531503742089).

212001112021111 is a wasteful number, since it uses less digits than its factorization.

212001112021111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21835525078.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 212001112021111 its reverse (111120211100212), we get a palindrome (323121323121323).

The spelling of 212001112021111 in words is "two hundred twelve trillion, one billion, one hundred twelve million, twenty-one thousand, one hundred eleven".