212211101010111 has 32 divisors (see below), whose sum is σ = 324187984220160. Its totient is φ = 120956486340096.

The previous prime is 212211101010079. The next prime is 212211101010119. The reversal of 212211101010111 is 111010101112212.

It is not a de Polignac number, because 212211101010111 - 2⁵ = 212211101010079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212211101010119) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1076366535 + ... + 1076563671.

It is an arithmetic number, because the mean of its divisors is an integer number (10130874506880).

Almost surely, 2^{212211101010111} is an apocalyptic number.

212211101010111 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

212211101010111 is a deficient number, since it is larger than the sum of its proper divisors (111976883210049).

212211101010111 is a wasteful number, since it uses less digits than its factorization.

212211101010111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326663.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 212211101010111 its reverse (111010101112212), we get a palindrome (323221202122323).

The spelling of 212211101010111 in words is "two hundred twelve trillion, two hundred eleven billion, one hundred one million, ten thousand, one hundred eleven".