30020210021 has 8 divisors (see below), whose sum is σ = 31105049760. Its totient is φ = 28954571152.

The previous prime is 30020210009. The next prime is 30020210023. The reversal of 30020210021 is 12001202003.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30020210021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30020209984 and 30020210011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30020210023) 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 7 ways as a sum of consecutive naturals, for example, 4797035 + ... + 4803288.

It is an arithmetic number, because the mean of its divisors is an integer number (3888131220).

Almost surely, 2^30020210021 is an apocalyptic number.

It is an amenable number.

30020210021 is a deficient number, since it is larger than the sum of its proper divisors (1084839739).

30020210021 is an equidigital number, since it uses as much as digits as its factorization.

30020210021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9600435.

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 30020210021 its reverse (12001202003), we get a palindrome (42021412024).

The spelling of 30020210021 in words is "thirty billion, twenty million, two hundred ten thousand, twenty-one".