20200220002120 has 32 divisors (see below), whose sum is σ = 45531224176320. Its totient is φ = 8065736148160.

The previous prime is 20200220002063. The next prime is 20200220002129. The reversal of 20200220002120 is 2120002200202.

It is a self number, because there is not a number n which added to its sum of digits gives 20200220002120.

It is not an unprimeable number, because it can be changed into a prime (20200220002129) 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, 448472596 + ... + 448517635.

It is an arithmetic number, because the mean of its divisors is an integer number (1422850755510).

Almost surely, 2^{20200220002120} is an apocalyptic number.

20200220002120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20200220002120 is an abundant number, since it is smaller than the sum of its proper divisors (25331004174200).

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

20200220002120 is a wasteful number, since it uses less digits than its factorization.

20200220002120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 896990805 (or 896990801 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 20200220002120 its reverse (2120002200202), we get a palindrome (22320222202322).

The spelling of 20200220002120 in words is "twenty trillion, two hundred billion, two hundred twenty million, two thousand, one hundred twenty".