2112020120020 has 48 divisors (see below), whose sum is σ = 4669035436800. Its totient is φ = 800926117376.

The previous prime is 2112020120009. The next prime is 2112020120057. The reversal of 2112020120020 is 200210202112.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 20263720 + ... + 20367679.

It is an arithmetic number, because the mean of its divisors is an integer number (97271571600).

Almost surely, 2^{2112020120020} is an apocalyptic number.

2112020120020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2112020120020 is an abundant number, since it is smaller than the sum of its proper divisors (2557015316780).

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

2112020120020 is a wasteful number, since it uses less digits than its factorization.

2112020120020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40631544 (or 40631542 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2112020120020 its reverse (200210202112), we get a palindrome (2312230322132).

The spelling of 2112020120020 in words is "two trillion, one hundred twelve billion, twenty million, one hundred twenty thousand, twenty".