120331021002021 has 12 divisors (see below), whose sum is σ = 181368495423648. Its totient is φ = 76732824986664.

The previous prime is 120331021002011. The next prime is 120331021002041. The reversal of 120331021002021 is 120200120133021.

120331021002021 is a `hidden beast` number, since 120 + 3 + 310 + 210 + 0 + 2 + 0 + 21 = 666.

It is not a de Polignac number, because 120331021002021 - 2⁹ = 120331021001509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120331021001985 and 120331021002003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120331021002001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 290654639895 + ... + 290654640308.

It is an arithmetic number, because the mean of its divisors is an integer number (15114041285304).

Almost surely, 2^{120331021002021} is an apocalyptic number.

It is an amenable number.

120331021002021 is a deficient number, since it is larger than the sum of its proper divisors (61037474421627).

120331021002021 is a wasteful number, since it uses less digits than its factorization.

120331021002021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581309280232 (or 581309280229 counting only the distinct ones).

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

Adding to 120331021002021 its reverse (120200120133021), we get a palindrome (240531141135042).

The spelling of 120331021002021 in words is "one hundred twenty trillion, three hundred thirty-one billion, twenty-one million, two thousand, twenty-one".