2120113302021 has 24 divisors (see below), whose sum is σ = 3597768029856. Its totient is φ = 1186077371040.

The previous prime is 2120113302019. The next prime is 2120113302023. The reversal of 2120113302021 is 1202033110212.

2120113302021 is a `hidden beast` number, since 2 + 120 + 11 + 330 + 202 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (2120113302019) and next prime (2120113302023).

It is not a de Polignac number, because 2120113302021 - 2¹ = 2120113302019 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2120113301985 and 2120113302003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120113302023) 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 23 ways as a sum of consecutive naturals, for example, 823663555 + ... + 823666128.

It is an arithmetic number, because the mean of its divisors is an integer number (149907001244).

Almost surely, 2^{2120113302021} is an apocalyptic number.

It is an amenable number.

2120113302021 is a deficient number, since it is larger than the sum of its proper divisors (1477654727835).

2120113302021 is a wasteful number, since it uses less digits than its factorization.

2120113302021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1647329713 (or 1647329710 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 2120113302021 its reverse (1202033110212), we get a palindrome (3322146412233).

The spelling of 2120113302021 in words is "two trillion, one hundred twenty billion, one hundred thirteen million, three hundred two thousand, twenty-one".