30221230032020 has 12 divisors (see below), whose sum is σ = 63464583067284. Its totient is φ = 12088492012800.

The previous prime is 30221230031953. The next prime is 30221230032047. The reversal of 30221230032020 is 2023003212203.

It can be written as a sum of positive squares in 2 ways, for example, as 15412879253776 + 14808350778244 = 3925924^2 + 3848162^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 1511061501601 = 30221230032020 / (3 + 0 + 2 + 2 + 1 + 2 + 3 + 0 + 0 + 3 + 2 + 0 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 30221230031983 and 30221230032001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 755530750781 + ... + 755530750820.

It is an arithmetic number, because the mean of its divisors is an integer number (5288715255607).

Almost surely, 2^{30221230032020} is an apocalyptic number.

It is an amenable number.

30221230032020 is an abundant number, since it is smaller than the sum of its proper divisors (33243353035264).

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

30221230032020 is a wasteful number, since it uses less digits than its factorization.

30221230032020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1511061501610 (or 1511061501608 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 30221230032020 its reverse (2023003212203), we get a palindrome (32244233244223).

The spelling of 30221230032020 in words is "thirty trillion, two hundred twenty-one billion, two hundred thirty million, thirty-two thousand, twenty".