212200122012111 has 6 divisors (see below), whose sum is σ = 306511287350840. Its totient is φ = 141466748008068.

The previous prime is 212200122012101. The next prime is 212200122012133. The reversal of 212200122012111 is 111210221002212.

212200122012111 is a `hidden beast` number, since 21 + 220 + 0 + 12 + 201 + 211 + 1 = 666.

It is not a de Polignac number, because 212200122012111 - 2⁵ = 212200122012079 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 (212200122012101) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11788895667331 + ... + 11788895667348.

Almost surely, 2^{212200122012111} is an apocalyptic number.

212200122012111 is a deficient number, since it is larger than the sum of its proper divisors (94311165338729).

212200122012111 is a wasteful number, since it uses less digits than its factorization.

212200122012111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23577791334685 (or 23577791334682 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 212200122012111 its reverse (111210221002212), we get a palindrome (323410343014323).

The spelling of 212200122012111 in words is "two hundred twelve trillion, two hundred billion, one hundred twenty-two million, twelve thousand, one hundred eleven".