30012210221 has 8 divisors (see below), whose sum is σ = 34307711424. Its totient is φ = 25718719680.

The previous prime is 30012210197. The next prime is 30012210251. The reversal of 30012210221 is 12201221003.

It is a happy number.

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 30012210221 - 2⁶ = 30012210157 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30012210196 and 30012210205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30012210251) 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, 470540 + ... + 530501.

It is an arithmetic number, because the mean of its divisors is an integer number (4288463928).

Almost surely, 2^30012210221 is an apocalyptic number.

It is an amenable number.

30012210221 is a deficient number, since it is larger than the sum of its proper divisors (4295501203).

30012210221 is a wasteful number, since it uses less digits than its factorization.

30012210221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1005331.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 30012210221 its reverse (12201221003), we get a palindrome (42213431224).

The spelling of 30012210221 in words is "thirty billion, twelve million, two hundred ten thousand, two hundred twenty-one".