30221321100020 has 24 divisors (see below), whose sum is σ = 63464983368864. Its totient is φ = 12088488619296.

The previous prime is 30221321099969. The next prime is 30221321100071. The reversal of 30221321100020 is 2000112312203.

It is an interprime number because it is at equal distance from previous prime (30221321099969) and next prime (30221321100071).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4168847 + ... + 8821673.

It is an arithmetic number, because the mean of its divisors is an integer number (2644374307036).

Almost surely, 2^{30221321100020} is an apocalyptic number.

It is an amenable number.

30221321100020 is an abundant number, since it is smaller than the sum of its proper divisors (33243662268844).

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

30221321100020 is a wasteful number, since it uses less digits than its factorization.

30221321100020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4977599 (or 4977597 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 30221321100020 its reverse (2000112312203), we get a palindrome (32221433412223).

The spelling of 30221321100020 in words is "thirty trillion, two hundred twenty-one billion, three hundred twenty-one million, one hundred thousand, twenty".