30221230211 has 4 divisors (see below), whose sum is σ = 30230472624. Its totient is φ = 30211987800.

The previous prime is 30221230199. The next prime is 30221230231. The reversal of 30221230211 is 11203212203.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11203212203 = 37 ⋅302789519.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30221230211 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 30221230211.

It is not an unprimeable number, because it can be changed into a prime (30221230231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4616300 + ... + 4622841.

It is an arithmetic number, because the mean of its divisors is an integer number (7557618156).

Almost surely, 2^30221230211 is an apocalyptic number.

30221230211 is a deficient number, since it is larger than the sum of its proper divisors (9242413).

30221230211 is an equidigital number, since it uses as much as digits as its factorization.

30221230211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9242412.

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

Adding to 30221230211 its reverse (11203212203), we get a palindrome (41424442414).

The spelling of 30221230211 in words is "thirty billion, two hundred twenty-one million, two hundred thirty thousand, two hundred eleven".