2100003220120 has 32 divisors (see below), whose sum is σ = 5088469342320. Its totient is φ = 775385804160.

The previous prime is 2100003220037. The next prime is 2100003220157. The reversal of 2100003220120 is 210223000012.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a self number, because there is not a number n which added to its sum of digits gives 2100003220120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2019233346 + ... + 2019234385.

Almost surely, 2^{2100003220120} is an apocalyptic number.

2100003220120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2100003220120 is an abundant number, since it is smaller than the sum of its proper divisors (2988466122200).

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

2100003220120 is a wasteful number, since it uses less digits than its factorization.

2100003220120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4038467755 (or 4038467751 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 2100003220120 its reverse (210223000012), we get a palindrome (2310226220132).

The spelling of 2100003220120 in words is "two trillion, one hundred billion, three million, two hundred twenty thousand, one hundred twenty".