30032221012 has 72 divisors (see below), whose sum is σ = 58584609720. Its totient is φ = 13420216320.

The previous prime is 30032221007. The next prime is 30032221019. The reversal of 30032221012 is 21012223003.

It can be written as a sum of positive squares in 12 ways, for example, as 11321811216 + 18710409796 = 106404^2 + 136786^2 .

It is a super-3 number, since 3×30032221012³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30032221019) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3484164 + ... + 3492772.

It is an arithmetic number, because the mean of its divisors is an integer number (813675135).

Almost surely, 2^30032221012 is an apocalyptic number.

It is an amenable number.

30032221012 is a deficient number, since it is larger than the sum of its proper divisors (28552388708).

30032221012 is a wasteful number, since it uses less digits than its factorization.

30032221012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8749 (or 8718 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 30032221012 its reverse (21012223003), we get a palindrome (51044444015).

The spelling of 30032221012 in words is "thirty billion, thirty-two million, two hundred twenty-one thousand, twelve".