212000011222111 has 32 divisors (see below), whose sum is σ = 245195230325760. Its totient is φ = 179540310122496.

The previous prime is 212000011222093. The next prime is 212000011222183. The reversal of 212000011222111 is 111222110000212.

It is a cyclic number.

It is not a de Polignac number, because 212000011222111 - 2²⁹ = 211999474351199 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 (212000011222511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2733011935 + ... + 2733089503.

It is an arithmetic number, because the mean of its divisors is an integer number (7662350947680).

Almost surely, 2^{212000011222111} is an apocalyptic number.

212000011222111 is a deficient number, since it is larger than the sum of its proper divisors (33195219103649).

212000011222111 is a wasteful number, since it uses less digits than its factorization.

212000011222111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86263.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 212000011222111 its reverse (111222110000212), we get a palindrome (323222121222323).

The spelling of 212000011222111 in words is "two hundred twelve trillion, eleven million, two hundred twenty-two thousand, one hundred eleven".