30302212221 has 12 divisors (see below), whose sum is σ = 43788353440. Its totient is φ = 20192940360.

The previous prime is 30302212169. The next prime is 30302212243. The reversal of 30302212221 is 12221220303.

It is not a de Polignac number, because 30302212221 - 2⁷ = 30302212093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30302212194 and 30302212203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30302212021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 688681 + ... + 731358.

Almost surely, 2^30302212221 is an apocalyptic number.

It is an amenable number.

30302212221 is a deficient number, since it is larger than the sum of its proper divisors (13486141219).

30302212221 is a wasteful number, since it uses less digits than its factorization.

30302212221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1422416 (or 1422413 counting only the distinct ones).

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

Adding to 30302212221 its reverse (12221220303), we get a palindrome (42523432524).

The spelling of 30302212221 in words is "thirty billion, three hundred two million, two hundred twelve thousand, two hundred twenty-one".