120000211021 has 4 divisors (see below), whose sum is σ = 120006157500. Its totient is φ = 119994264544.

The previous prime is 120000210991. The next prime is 120000211033. The reversal of 120000211021 is 120112000021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24357844900 + 95642366121 = 156070^2 + 309261^2 .

It is a cyclic number.

It is not a de Polignac number, because 120000211021 - 2⁷ = 120000210893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120000210989 and 120000211007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120000211321) 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 3 ways as a sum of consecutive naturals, for example, 2942866 + ... + 2983363.

It is an arithmetic number, because the mean of its divisors is an integer number (30001539375).

Almost surely, 2^120000211021 is an apocalyptic number.

It is an amenable number.

120000211021 is a deficient number, since it is larger than the sum of its proper divisors (5946479).

120000211021 is an equidigital number, since it uses as much as digits as its factorization.

120000211021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5946478.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 120000211021 its reverse (120112000021), we get a palindrome (240112211042).

The spelling of 120000211021 in words is "one hundred twenty billion, two hundred eleven thousand, twenty-one".