2100201000120 has 48 divisors (see below), whose sum is σ = 6825653251560. Its totient is φ = 560053599936.

The previous prime is 2100201000119. The next prime is 2100201000133. The reversal of 2100201000120 is 210001020012.

It is a Harshad number since it is a multiple of its sum of digits (9).

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 11 ways as a sum of consecutive naturals, for example, 2916945474 + ... + 2916946193.

Almost surely, 2^{2100201000120} is an apocalyptic number.

2100201000120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2100201000120 is an abundant number, since it is smaller than the sum of its proper divisors (4725452251440).

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

2100201000120 is a wasteful number, since it uses less digits than its factorization.

2100201000120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5833891684 (or 5833891677 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 2100201000120 its reverse (210001020012), we get a palindrome (2310202020132).

The spelling of 2100201000120 in words is "two trillion, one hundred billion, two hundred one million, one hundred twenty", and thus it is an aban number.