2020001220120 has 64 divisors (see below), whose sum is σ = 6526157793120. Its totient is φ = 497231069184.

The previous prime is 2020001220119. The next prime is 2020001220121. The reversal of 2020001220120 is 210221000202.

It is an interprime number because it is at equal distance from previous prime (2020001220119) and next prime (2020001220121).

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 = 2020001220096 and 2020001220105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020001220121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 647434729 + ... + 647437848.

Almost surely, 2^{2020001220120} is an apocalyptic number.

2020001220120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2020001220120 is an abundant number, since it is smaller than the sum of its proper divisors (4506156573000).

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

2020001220120 is a wasteful number, since it uses less digits than its factorization.

2020001220120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1294872604 (or 1294872600 counting only the distinct ones).

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

Adding to 2020001220120 its reverse (210221000202), we get a palindrome (2230222220322).

The spelling of 2020001220120 in words is "two trillion, twenty billion, one million, two hundred twenty thousand, one hundred twenty".