210520213512 has 48 divisors (see below), whose sum is σ = 612227154960. Its totient is φ = 60148632096.

The previous prime is 210520213489. The next prime is 210520213523. The reversal of 210520213512 is 215312025012.

210520213512 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 89505718 + ... + 89508069.

It is an arithmetic number, because the mean of its divisors is an integer number (12754732395).

Almost surely, 2^210520213512 is an apocalyptic number.

It is an amenable number.

210520213512 is an abundant number, since it is smaller than the sum of its proper divisors (401706941448).

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

210520213512 is a wasteful number, since it uses less digits than its factorization.

210520213512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179013810 (or 179013799 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 210520213512 its reverse (215312025012), we get a palindrome (425832238524).

The spelling of 210520213512 in words is "two hundred ten billion, five hundred twenty million, two hundred thirteen thousand, five hundred twelve".