212130133211 has 4 divisors (see below), whose sum is σ = 212364015192. Its totient is φ = 211896251232.

The previous prime is 212130133157. The next prime is 212130133217. The reversal of 212130133211 is 112331031212.

It is a happy number.

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 212130133211 - 2¹⁰ = 212130132187 is a prime.

It is a super-3 number, since 3×212130133211³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212130133217) 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, 116939630 + ... + 116941443.

It is an arithmetic number, because the mean of its divisors is an integer number (53091003798).

Almost surely, 2^212130133211 is an apocalyptic number.

212130133211 is a deficient number, since it is larger than the sum of its proper divisors (233881981).

212130133211 is an equidigital number, since it uses as much as digits as its factorization.

212130133211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233881980.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 212130133211 its reverse (112331031212), we get a palindrome (324461164423).

It can be divided in two parts, 2121301 and 33211, that added together give a palindrome (2154512).

The spelling of 212130133211 in words is "two hundred twelve billion, one hundred thirty million, one hundred thirty-three thousand, two hundred eleven".