2101002202120 has 32 divisors (see below), whose sum is σ = 4731894158400. Its totient is φ = 839576133568.

The previous prime is 2101002202043. The next prime is 2101002202129. The reversal of 2101002202120 is 212022001012.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2101002202120.

It is not an unprimeable number, because it can be changed into a prime (2101002202129) 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, 25732084 + ... + 25813603.

It is an arithmetic number, because the mean of its divisors is an integer number (147871692450).

Almost surely, 2^{2101002202120} is an apocalyptic number.

2101002202120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2101002202120 is an abundant number, since it is smaller than the sum of its proper divisors (2630891956280).

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

2101002202120 is a wasteful number, since it uses less digits than its factorization.

2101002202120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51546717 (or 51546713 counting only the distinct ones).

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

Adding to 2101002202120 its reverse (212022001012), we get a palindrome (2313024203132).

The spelling of 2101002202120 in words is "two trillion, one hundred one billion, two million, two hundred two thousand, one hundred twenty".