30021202120 has 64 divisors (see below), whose sum is σ = 83135646720. Its totient is φ = 9501214464.

The previous prime is 30021202103. The next prime is 30021202121. The reversal of 30021202120 is 2120212003.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a self number, because there is not a number n which added to its sum of digits gives 30021202120.

It is not an unprimeable number, because it can be changed into a prime (30021202121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4120152 + ... + 4127431.

It is an arithmetic number, because the mean of its divisors is an integer number (1298994480).

Almost surely, 2^30021202120 is an apocalyptic number.

It is an amenable number.

30021202120 is an abundant number, since it is smaller than the sum of its proper divisors (53114444600).

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

30021202120 is a wasteful number, since it uses less digits than its factorization.

30021202120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8247614 (or 8247610 counting only the distinct ones).

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

Adding to 30021202120 its reverse (2120212003), we get a palindrome (32141414123).

The spelling of 30021202120 in words is "thirty billion, twenty-one million, two hundred two thousand, one hundred twenty".