212133132200321 has 4 divisors (see below), whose sum is σ = 212408988029700. Its totient is φ = 211857276370944.

The previous prime is 212133132200299. The next prime is 212133132200323. The reversal of 212133132200321 is 123002231331212.

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 81040685107600 + 131092447092721 = 9002260^2 + 11449561^2 .

It is a cyclic number.

It is not a de Polignac number, because 212133132200321 - 2³⁰ = 212132058458497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212133132200323) 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, 137927913536 + ... + 137927915073.

It is an arithmetic number, because the mean of its divisors is an integer number (53102247007425).

Almost surely, 2^{212133132200321} is an apocalyptic number.

It is an amenable number.

212133132200321 is a deficient number, since it is larger than the sum of its proper divisors (275855829379).

212133132200321 is an equidigital number, since it uses as much as digits as its factorization.

212133132200321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275855829378.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 212133132200321 its reverse (123002231331212), we get a palindrome (335135363531533).

The spelling of 212133132200321 in words is "two hundred twelve trillion, one hundred thirty-three billion, one hundred thirty-two million, two hundred thousand, three hundred twenty-one".