120421110120020 has 96 divisors (see below), whose sum is σ = 256622013648000. Its totient is φ = 47462694289920.

The previous prime is 120421110120019. The next prime is 120421110120083. The reversal of 120421110120020 is 20021011124021.

It is a super-4 number, since 4×120421110120020⁴ (a number of 57 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 257320082 + ... + 257787638.

It is an arithmetic number, because the mean of its divisors is an integer number (2673145975500).

Almost surely, 2^{120421110120020} is an apocalyptic number.

120421110120020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120421110120020 is an abundant number, since it is smaller than the sum of its proper divisors (136200903527980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120421110120020 is a wasteful number, since it uses less digits than its factorization.

120421110120020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468393 (or 468391 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 120421110120020 its reverse (20021011124021), we get a palindrome (140442121244041).

The spelling of 120421110120020 in words is "one hundred twenty trillion, four hundred twenty-one billion, one hundred ten million, one hundred twenty thousand, twenty".