120321210021 has 8 divisors (see below), whose sum is σ = 160435339104. Its totient is φ = 80210610480.

The previous prime is 120321210017. The next prime is 120321210059. The reversal of 120321210021 is 120012123021.

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

It is not a de Polignac number, because 120321210021 - 2² = 120321210017 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120321210001) 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, 801790 + ... + 939951.

It is an arithmetic number, because the mean of its divisors is an integer number (20054417388).

Almost surely, 2^120321210021 is an apocalyptic number.

It is an amenable number.

120321210021 is a deficient number, since it is larger than the sum of its proper divisors (40114129083).

120321210021 is a wasteful number, since it uses less digits than its factorization.

120321210021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1764771.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 120321210021 its reverse (120012123021), we get a palindrome (240333333042).

The spelling of 120321210021 in words is "one hundred twenty billion, three hundred twenty-one million, two hundred ten thousand, twenty-one".