30021220012 has 24 divisors (see below), whose sum is σ = 61979294720. Its totient is φ = 12451196880.

The previous prime is 30021219947. The next prime is 30021220049. The reversal of 30021220012 is 21002212003.

It is a junction number, because it is equal to n+sod(n) for n = 30021219974 and 30021220001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17292462 + ... + 17294197.

Almost surely, 2^30021220012 is an apocalyptic number.

It is an amenable number.

30021220012 is an abundant number, since it is smaller than the sum of its proper divisors (31958074708).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30021220012 is a wasteful number, since it uses less digits than its factorization.

30021220012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34586701 (or 34586699 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 30021220012 its reverse (21002212003), we get a palindrome (51023432015).

The spelling of 30021220012 in words is "thirty billion, twenty-one million, two hundred twenty thousand, twelve".