212210210111 has 4 divisors (see below), whose sum is σ = 212400193512. Its totient is φ = 212020226712.

The previous prime is 212210210099. The next prime is 212210210159. The reversal of 212210210111 is 111012012212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212210210111 - 2³⁴ = 195030340927 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 (212210210011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94990025 + ... + 94992258.

It is an arithmetic number, because the mean of its divisors is an integer number (53100048378).

Almost surely, 2^212210210111 is an apocalyptic number.

212210210111 is a deficient number, since it is larger than the sum of its proper divisors (189983401).

212210210111 is a wasteful number, since it uses less digits than its factorization.

212210210111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189983400.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 212210210111 its reverse (111012012212), we get a palindrome (323222222323).

The spelling of 212210210111 in words is "two hundred twelve billion, two hundred ten million, two hundred ten thousand, one hundred eleven".