120210002101021 has 4 divisors (see below), whose sum is σ = 137382859544032. Its totient is φ = 103037144658012.

The previous prime is 120210002101019. The next prime is 120210002101039. The reversal of 120210002101021 is 120101200012021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 120210002101021 - 2¹ = 120210002101019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120210002100992 and 120210002101010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120210002101051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8586428721495 + ... + 8586428721508.

It is an arithmetic number, because the mean of its divisors is an integer number (34345714886008).

Almost surely, 2^{120210002101021} is an apocalyptic number.

It is an amenable number.

120210002101021 is a deficient number, since it is larger than the sum of its proper divisors (17172857443011).

120210002101021 is an equidigital number, since it uses as much as digits as its factorization.

120210002101021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17172857443010.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 120210002101021 its reverse (120101200012021), we get a palindrome (240311202113042).

The spelling of 120210002101021 in words is "one hundred twenty trillion, two hundred ten billion, two million, one hundred one thousand, twenty-one".