2101340420120 has 32 divisors (see below), whose sum is σ = 4765244428800. Its totient is φ = 833917771008.

The previous prime is 2101340420083. The next prime is 2101340420159. The reversal of 2101340420120 is 210240431012.

It is a super-2 number, since 2×2101340420120² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 2101340420092 and 2101340420101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 206819765 + ... + 206829924.

It is an arithmetic number, because the mean of its divisors is an integer number (148913888400).

Almost surely, 2^{2101340420120} is an apocalyptic number.

2101340420120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2101340420120 is an abundant number, since it is smaller than the sum of its proper divisors (2663904008680).

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

2101340420120 is a wasteful number, since it uses less digits than its factorization.

2101340420120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413649827 (or 413649823 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 2101340420120 its reverse (210240431012), we get a palindrome (2311580851132).

The spelling of 2101340420120 in words is "two trillion, one hundred one billion, three hundred forty million, four hundred twenty thousand, one hundred twenty".