120021210021 has 8 divisors (see below), whose sum is σ = 160076509120. Its totient is φ = 79990025472.

The previous prime is 120021210007. The next prime is 120021210061. The reversal of 120021210021 is 120012120021.

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

It is not a de Polignac number, because 120021210021 - 2⁵ = 120021209989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120021209979 and 120021210006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120021210061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6017020 + ... + 6036933.

It is an arithmetic number, because the mean of its divisors is an integer number (20009563640).

Almost surely, 2^120021210021 is an apocalyptic number.

It is an amenable number.

120021210021 is a deficient number, since it is larger than the sum of its proper divisors (40055299099).

120021210021 is a wasteful number, since it uses less digits than its factorization.

120021210021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12057275.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 120021210021 its reverse (120012120021), we get a palindrome (240033330042).

The spelling of 120021210021 in words is "one hundred twenty billion, twenty-one million, two hundred ten thousand, twenty-one".