212013302321 has 8 divisors (see below), whose sum is σ = 224293368000. Its totient is φ = 199845383760.

The previous prime is 212013302309. The next prime is 212013302329. The reversal of 212013302321 is 123203310212.

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 212013302321 - 2¹⁸ = 212013040177 is a prime.

It is a super-2 number, since 2×212013302321² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212013302293 and 212013302302.

It is not an unprimeable number, because it can be changed into a prime (212013302329) 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, 28032890 + ... + 28040451.

It is an arithmetic number, because the mean of its divisors is an integer number (28036671000).

Almost surely, 2^212013302321 is an apocalyptic number.

It is an amenable number.

212013302321 is a deficient number, since it is larger than the sum of its proper divisors (12280065679).

212013302321 is a wasteful number, since it uses less digits than its factorization.

212013302321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56073559.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 212013302321 its reverse (123203310212), we get a palindrome (335216612533).

The spelling of 212013302321 in words is "two hundred twelve billion, thirteen million, three hundred two thousand, three hundred twenty-one".