30021231220206 has 32 divisors (see below), whose sum is σ = 60408393470208. Its totient is φ = 9946101258240.

The previous prime is 30021231220129. The next prime is 30021231220217. The reversal of 30021231220206 is 60202213212003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7910541 + ... + 11073351.

It is an arithmetic number, because the mean of its divisors is an integer number (1887762295944).

Almost surely, 2^{30021231220206} is an apocalyptic number.

30021231220206 is an abundant number, since it is smaller than the sum of its proper divisors (30387162250002).

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

30021231220206 is a wasteful number, since it uses less digits than its factorization.

30021231220206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3172456.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 30021231220206 its reverse (60202213212003), we get a palindrome (90223444432209).

The spelling of 30021231220206 in words is "thirty trillion, twenty-one billion, two hundred thirty-one million, two hundred twenty thousand, two hundred six".