30021122020 has 12 divisors (see below), whose sum is σ = 63044356284. Its totient is φ = 12008448800.

The previous prime is 30021122003. The next prime is 30021122023. The reversal of 30021122020 is 2022112003.

It can be written as a sum of positive squares in 2 ways, for example, as 22912271424 + 7108850596 = 151368^2 + 84314^2 .

It is not an unprimeable number, because it can be changed into a prime (30021122023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 750528031 + ... + 750528070.

It is an arithmetic number, because the mean of its divisors is an integer number (5253696357).

Almost surely, 2^30021122020 is an apocalyptic number.

It is an amenable number.

30021122020 is an abundant number, since it is smaller than the sum of its proper divisors (33023234264).

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

30021122020 is a wasteful number, since it uses less digits than its factorization.

30021122020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1501056110 (or 1501056108 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 30021122020 its reverse (2022112003), we get a palindrome (32043234023).

The spelling of 30021122020 in words is "thirty billion, twenty-one million, one hundred twenty-two thousand, twenty".