210353215512 has 64 divisors (see below), whose sum is σ = 587683071360. Its totient is φ = 62188678400.

The previous prime is 210353215493. The next prime is 210353215529. The reversal of 210353215512 is 215512353012.

It is a self number, because there is not a number n which added to its sum of digits gives 210353215512.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9706158 + ... + 9727805.

It is an arithmetic number, because the mean of its divisors is an integer number (9182547990).

Almost surely, 2^210353215512 is an apocalyptic number.

210353215512 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

210353215512 is an abundant number, since it is smaller than the sum of its proper divisors (377329855848).

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

210353215512 is a wasteful number, since it uses less digits than its factorization.

210353215512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19434024 (or 19434020 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 30.

Adding to 210353215512 its reverse (215512353012), we get a palindrome (425865568524).

The spelling of 210353215512 in words is "two hundred ten billion, three hundred fifty-three million, two hundred fifteen thousand, five hundred twelve".