30220213221 has 24 divisors (see below), whose sum is σ = 47625361056. Its totient is φ = 18313115040.

The previous prime is 30220213213. The next prime is 30220213249. The reversal of 30220213221 is 12231202203.

30220213221 is a `hidden beast` number, since 302 + 20 + 21 + 322 + 1 = 666.

It is not a de Polignac number, because 30220213221 - 2³ = 30220213213 is a prime.

It is a super-2 number, since 2×30220213221² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30220213194 and 30220213203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30220213271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1327491 + ... + 1350063.

It is an arithmetic number, because the mean of its divisors is an integer number (1984390044).

Almost surely, 2^30220213221 is an apocalyptic number.

It is an amenable number.

30220213221 is a deficient number, since it is larger than the sum of its proper divisors (17405147835).

30220213221 is a wasteful number, since it uses less digits than its factorization.

30220213221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36113 (or 36110 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 30220213221 its reverse (12231202203), we get a palindrome (42451415424).

The spelling of 30220213221 in words is "thirty billion, two hundred twenty million, two hundred thirteen thousand, two hundred twenty-one".