2120424535100 has 72 divisors (see below), whose sum is σ = 4738542547200. Its totient is φ = 823239518400.

The previous prime is 2120424535091. The next prime is 2120424535129. The reversal of 2120424535100 is 15354240212.

It is a super-2 number, since 2×2120424535100² (a number of 25 digits) contains 22 as substring.

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 23 ways as a sum of consecutive naturals, for example, 1808546 + ... + 2740745.

Almost surely, 2^{2120424535100} is an apocalyptic number.

2120424535100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2120424535100 is an abundant number, since it is smaller than the sum of its proper divisors (2618118012100).

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

2120424535100 is a wasteful number, since it uses less digits than its factorization.

2120424535100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4549443 (or 4549436 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 2120424535100 its reverse (15354240212), we get a palindrome (2135778775312).

The spelling of 2120424535100 in words is "two trillion, one hundred twenty billion, four hundred twenty-four million, five hundred thirty-five thousand, one hundred".