30021231220197 has 32 divisors (see below), whose sum is σ = 48157183979520. Its totient is φ = 16251140600640.

The previous prime is 30021231220129. The next prime is 30021231220217. The reversal of 30021231220197 is 79102213212003.

It is a happy number.

It is not a de Polignac number, because 30021231220197 - 2¹⁰ = 30021231219173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30021231220997) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4619172 + ... + 9021042.

It is an arithmetic number, because the mean of its divisors is an integer number (1504911999360).

Almost surely, 2^{30021231220197} is an apocalyptic number.

It is an amenable number.

30021231220197 is a deficient number, since it is larger than the sum of its proper divisors (18135952759323).

30021231220197 is a wasteful number, since it uses less digits than its factorization.

30021231220197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4418993.

The product of its (nonzero) digits is 9072, while the sum is 33.

The spelling of 30021231220197 in words is "thirty trillion, twenty-one billion, two hundred thirty-one million, two hundred twenty thousand, one hundred ninety-seven".