212210202012111 has 6 divisors (see below), whose sum is σ = 306525847350840. Its totient is φ = 141473468008068.

The previous prime is 212210202012077. The next prime is 212210202012143. The reversal of 212210202012111 is 111210202012212.

212210202012111 is a `hidden beast` number, since 21 + 2 + 210 + 20 + 201 + 211 + 1 = 666.

It is not a de Polignac number, because 212210202012111 - 2¹⁸ = 212210201749967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212210202002111) 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, 11789455667331 + ... + 11789455667348.

It is an arithmetic number, because the mean of its divisors is an integer number (51087641225140).

Almost surely, 2^{212210202012111} is an apocalyptic number.

212210202012111 is a deficient number, since it is larger than the sum of its proper divisors (94315645338729).

212210202012111 is a wasteful number, since it uses less digits than its factorization.

212210202012111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23578911334685 (or 23578911334682 counting only the distinct ones).

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

Adding to 212210202012111 its reverse (111210202012212), we get a palindrome (323420404024323).

The spelling of 212210202012111 in words is "two hundred twelve trillion, two hundred ten billion, two hundred two million, twelve thousand, one hundred eleven".