212333013221 has 8 divisors (see below), whose sum is σ = 248584991424. Its totient is φ = 177560707680.

The previous prime is 212333013203. The next prime is 212333013241. The reversal of 212333013221 is 122310333212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212333013221 - 2³⁴ = 195153144037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212333013241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 369917855 + ... + 369918428.

It is an arithmetic number, because the mean of its divisors is an integer number (31073123928).

Almost surely, 2^212333013221 is an apocalyptic number.

It is an amenable number.

212333013221 is a deficient number, since it is larger than the sum of its proper divisors (36251978203).

212333013221 is an equidigital number, since it uses as much as digits as its factorization.

212333013221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739836331.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 212333013221 its reverse (122310333212), we get a palindrome (334643346433).

The spelling of 212333013221 in words is "two hundred twelve billion, three hundred thirty-three million, thirteen thousand, two hundred twenty-one".