210212211101 has 4 divisors (see below), whose sum is σ = 210358906332. Its totient is φ = 210065515872.

The previous prime is 210212211071. The next prime is 210212211133. The reversal of 210212211101 is 101112212012.

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

It can be written as a sum of positive squares in 2 ways, for example, as 87660405625 + 122551805476 = 296075^2 + 350074^2 .

It is a cyclic number.

It is not a de Polignac number, because 210212211101 - 2¹⁰ = 210212210077 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 (210212211151) 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, 73345466 + ... + 73348331.

It is an arithmetic number, because the mean of its divisors is an integer number (52589726583).

Almost surely, 2^210212211101 is an apocalyptic number.

It is an amenable number.

210212211101 is a deficient number, since it is larger than the sum of its proper divisors (146695231).

210212211101 is a wasteful number, since it uses less digits than its factorization.

210212211101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146695230.

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

Adding to 210212211101 its reverse (101112212012), we get a palindrome (311324423113).

The spelling of 210212211101 in words is "two hundred ten billion, two hundred twelve million, two hundred eleven thousand, one hundred one".