30201021100020 has 24 divisors (see below), whose sum is σ = 84562859080224. Its totient is φ = 8053605626656.

The previous prime is 30201021099983. The next prime is 30201021100021. The reversal of 30201021100020 is 2000112010203.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 30201021099969 and 30201021100005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30201021100021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 251675175774 + ... + 251675175893.

It is an arithmetic number, because the mean of its divisors is an integer number (3523452461676).

Almost surely, 2^{30201021100020} is an apocalyptic number.

30201021100020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30201021100020 is an abundant number, since it is smaller than the sum of its proper divisors (54361837980204).

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

30201021100020 is a wasteful number, since it uses less digits than its factorization.

30201021100020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503350351679 (or 503350351677 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 30201021100020 its reverse (2000112010203), we get a palindrome (32201133110223).

The spelling of 30201021100020 in words is "thirty trillion, two hundred one billion, twenty-one million, one hundred thousand, twenty".