210005554120 has 16 divisors (see below), whose sum is σ = 472512496860. Its totient is φ = 84002221632.

The previous prime is 210005554051. The next prime is 210005554133. The reversal of 210005554120 is 21455500012.

210005554120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 203695158276 + 6310395844 = 451326^2 + 79438^2 .

It is a super-2 number, since 2×210005554120² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2625069387 + ... + 2625069466.

Almost surely, 2^210005554120 is an apocalyptic number.

210005554120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210005554120 is an abundant number, since it is smaller than the sum of its proper divisors (262506942740).

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

210005554120 is a wasteful number, since it uses less digits than its factorization.

210005554120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5250138864 (or 5250138860 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

The spelling of 210005554120 in words is "two hundred ten billion, five million, five hundred fifty-four thousand, one hundred twenty".