212133041121 has 4 divisors (see below), whose sum is σ = 282844054832. Its totient is φ = 141422027412.

The previous prime is 212133041089. The next prime is 212133041143. The reversal of 212133041121 is 121140331212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 212133041121 - 2⁵ = 212133041089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212133041161) 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, 35355506851 + ... + 35355506856.

It is an arithmetic number, because the mean of its divisors is an integer number (70711013708).

Almost surely, 2^212133041121 is an apocalyptic number.

It is an amenable number.

212133041121 is a deficient number, since it is larger than the sum of its proper divisors (70711013711).

212133041121 is an equidigital number, since it uses as much as digits as its factorization.

212133041121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70711013710.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 212133041121 its reverse (121140331212), we get a palindrome (333273372333).

The spelling of 212133041121 in words is "two hundred twelve billion, one hundred thirty-three million, forty-one thousand, one hundred twenty-one".