212243400300444 has 24 divisors (see below), whose sum is σ = 497800583093520. Its totient is φ = 70381231186944.

The previous prime is 212243400300439. The next prime is 212243400300517. The reversal of 212243400300444 is 444003004342212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45821111739 + ... + 45821116370.

It is an arithmetic number, because the mean of its divisors is an integer number (20741690962230).

Almost surely, 2^{212243400300444} is an apocalyptic number.

It is an amenable number.

212243400300444 is an abundant number, since it is smaller than the sum of its proper divisors (285557182793076).

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

212243400300444 is a wasteful number, since it uses less digits than its factorization.

212243400300444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91642228309 (or 91642228307 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 33.

Adding to 212243400300444 its reverse (444003004342212), we get a palindrome (656246404642656).

The spelling of 212243400300444 in words is "two hundred twelve trillion, two hundred forty-three billion, four hundred million, three hundred thousand, four hundred forty-four".