212210120022111 has 16 divisors (see below), whose sum is σ = 314392834216800. Its totient is φ = 141470051298624.

The previous prime is 212210120022091. The next prime is 212210120022151. The reversal of 212210120022111 is 111220021012212.

212210120022111 is a `hidden beast` number, since 21 + 2 + 210 + 1 + 200 + 221 + 11 = 666.

It is not a de Polignac number, because 212210120022111 - 2⁵ = 212210120022079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212210120022151) 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, 92232816 + ... + 94505621.

It is an arithmetic number, because the mean of its divisors is an integer number (19649552138550).

Almost surely, 2^{212210120022111} is an apocalyptic number.

212210120022111 is a deficient number, since it is larger than the sum of its proper divisors (102182714194689).

212210120022111 is a wasteful number, since it uses less digits than its factorization.

212210120022111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186780535 (or 186780529 counting only the distinct ones).

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

Adding to 212210120022111 its reverse (111220021012212), we get a palindrome (323430141034323).

The spelling of 212210120022111 in words is "two hundred twelve trillion, two hundred ten billion, one hundred twenty million, twenty-two thousand, one hundred eleven".