20020002012120 has 128 divisors (see below), whose sum is σ = 67633555322880. Its totient is φ = 4696774656000.

The previous prime is 20020002012119. The next prime is 20020002012121. The reversal of 20020002012120 is 2121020002002.

It is an interprime number because it is at equal distance from previous prime (20020002012119) and next prime (20020002012121).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 20020002012096 and 20020002012105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20020002012121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 244582761 + ... + 244664600.

It is an arithmetic number, because the mean of its divisors is an integer number (528387150960).

Almost surely, 2^{20020002012120} is an apocalyptic number.

20020002012120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20020002012120 is an abundant number, since it is smaller than the sum of its proper divisors (47613553310760).

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

20020002012120 is a wasteful number, since it uses less digits than its factorization.

20020002012120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489247417 (or 489247413 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 20020002012120 its reverse (2121020002002), we get a palindrome (22141022014122).

The spelling of 20020002012120 in words is "twenty trillion, twenty billion, two million, twelve thousand, one hundred twenty".