212454414550 has 48 divisors (see below), whose sum is σ = 454913964000. Its totient is φ = 72309807360.

The previous prime is 212454414533. The next prime is 212454414553. The reversal of 212454414550 is 55414454212.

212454414550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212454414553) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 2167425 + ... + 2263324.

It is an arithmetic number, because the mean of its divisors is an integer number (9477374250).

Almost surely, 2^212454414550 is an apocalyptic number.

212454414550 is an abundant number, since it is smaller than the sum of its proper divisors (242459549450).

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

212454414550 is a wasteful number, since it uses less digits than its factorization.

212454414550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4430905 (or 4430900 counting only the distinct ones).

The product of its (nonzero) digits is 128000, while the sum is 37.

Adding to 212454414550 its reverse (55414454212), we get a palindrome (267868868762).

The spelling of 212454414550 in words is "two hundred twelve billion, four hundred fifty-four million, four hundred fourteen thousand, five hundred fifty".