212013032321 has 8 divisors (see below), whose sum is σ = 221756489664. Its totient is φ = 202313366640.

The previous prime is 212013032279. The next prime is 212013032327. The reversal of 212013032321 is 123230310212.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212013032321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212013032293 and 212013032302.

It is not an unprimeable number, because it can be changed into a prime (212013032327) 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, 10938011 + ... + 10957376.

It is an arithmetic number, because the mean of its divisors is an integer number (27719561208).

Almost surely, 2^212013032321 is an apocalyptic number.

It is an amenable number.

212013032321 is a deficient number, since it is larger than the sum of its proper divisors (9743457343).

212013032321 is a wasteful number, since it uses less digits than its factorization.

212013032321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21895831.

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

Adding to 212013032321 its reverse (123230310212), we get a palindrome (335243342533).

The spelling of 212013032321 in words is "two hundred twelve billion, thirteen million, thirty-two thousand, three hundred twenty-one".