212110101111 has 16 divisors (see below), whose sum is σ = 286032055680. Its totient is φ = 139801543200.

The previous prime is 212110101109. The next prime is 212110101143. The reversal of 212110101111 is 111101011212.

It is not a de Polignac number, because 212110101111 - 2¹ = 212110101109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212110101191) 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, 305521 + ... + 719418.

It is an arithmetic number, because the mean of its divisors is an integer number (17877003480).

Almost surely, 2^212110101111 is an apocalyptic number.

212110101111 is a deficient number, since it is larger than the sum of its proper divisors (73921954569).

212110101111 is a wasteful number, since it uses less digits than its factorization.

212110101111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1025726.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 212110101111 its reverse (111101011212), we get a palindrome (323211112323).

The spelling of 212110101111 in words is "two hundred twelve billion, one hundred ten million, one hundred one thousand, one hundred eleven".