212454325125 has 48 divisors (see below), whose sum is σ = 437696393472. Its totient is φ = 97121973600.

The previous prime is 212454325121. The next prime is 212454325189. The reversal of 212454325125 is 521523454212.

212454325125 is a `hidden beast` number, since 21 + 24 + 543 + 2 + 51 + 25 = 666.

It is not a de Polignac number, because 212454325125 - 2² = 212454325121 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212454325125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212454325121) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13481289 + ... + 13497038.

It is an arithmetic number, because the mean of its divisors is an integer number (9118674864).

Almost surely, 2^212454325125 is an apocalyptic number.

212454325125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

212454325125 is an abundant number, since it is smaller than the sum of its proper divisors (225242068347).

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

212454325125 is a wasteful number, since it uses less digits than its factorization.

212454325125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26978355 (or 26978342 counting only the distinct ones).

The product of its digits is 96000, while the sum is 36.

Adding to 212454325125 its reverse (521523454212), we get a palindrome (733977779337).

The spelling of 212454325125 in words is "two hundred twelve billion, four hundred fifty-four million, three hundred twenty-five thousand, one hundred twenty-five".