212133014321 has 4 divisors (see below), whose sum is σ = 215728489200. Its totient is φ = 208537539444.

The previous prime is 212133014311. The next prime is 212133014323. The reversal of 212133014321 is 123410331212.

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 a cyclic number.

It is not a de Polignac number, because 212133014321 - 2⁶ = 212133014257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212133014323) 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, 1797737351 + ... + 1797737468.

It is an arithmetic number, because the mean of its divisors is an integer number (53932122300).

Almost surely, 2^212133014321 is an apocalyptic number.

It is an amenable number.

212133014321 is a deficient number, since it is larger than the sum of its proper divisors (3595474879).

212133014321 is an equidigital number, since it uses as much as digits as its factorization.

212133014321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3595474878.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 212133014321 its reverse (123410331212), we get a palindrome (335543345533).

The spelling of 212133014321 in words is "two hundred twelve billion, one hundred thirty-three million, fourteen thousand, three hundred twenty-one".