2120301021 has 16 divisors (see below), whose sum is σ = 2918096000. Its totient is φ = 1368404928.

The previous prime is 2120301011. The next prime is 2120301031. The reversal of 2120301021 is 1201030212.

It is an interprime number because it is at equal distance from previous prime (2120301011) and next prime (2120301031).

It is not a de Polignac number, because 2120301021 - 2¹³ = 2120292829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2120300988 and 2120301006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120301011) 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, 25906 + ... + 70083.

It is an arithmetic number, because the mean of its divisors is an integer number (182381000).

Almost surely, 2^2120301021 is an apocalyptic number.

It is an amenable number.

2120301021 is a deficient number, since it is larger than the sum of its proper divisors (797794979).

2120301021 is a wasteful number, since it uses less digits than its factorization.

2120301021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96228.

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

The square root of 2120301021 is about 46046.7264960279. The cubic root of 2120301021 is about 1284.6924568956.

Adding to 2120301021 its reverse (1201030212), we get a palindrome (3321331233).

The spelling of 2120301021 in words is "two billion, one hundred twenty million, three hundred one thousand, twenty-one".