30210213221 has 8 divisors (see below), whose sum is σ = 30247181184. Its totient is φ = 30173270400.

The previous prime is 30210213211. The next prime is 30210213233. The reversal of 30210213221 is 12231201203.

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-30210213221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30210213221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30210213211) 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, 3453365 + ... + 3462101.

It is an arithmetic number, because the mean of its divisors is an integer number (3780897648).

Almost surely, 2^30210213221 is an apocalyptic number.

It is an amenable number.

30210213221 is a deficient number, since it is larger than the sum of its proper divisors (36967963).

30210213221 is a wasteful number, since it uses less digits than its factorization.

30210213221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12571.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 30210213221 its reverse (12231201203), we get a palindrome (42441414424).

The spelling of 30210213221 in words is "thirty billion, two hundred ten million, two hundred thirteen thousand, two hundred twenty-one".