212012420244 has 48 divisors (see below), whose sum is σ = 508530109248. Its totient is φ = 68697946368.

The previous prime is 212012420233. The next prime is 212012420309. The reversal of 212012420244 is 442024210212.

It is a happy number.

212012420244 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×212012420244³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 269427 + ... + 704709.

It is an arithmetic number, because the mean of its divisors is an integer number (10594377276).

Almost surely, 2^212012420244 is an apocalyptic number.

It is an amenable number.

212012420244 is an abundant number, since it is smaller than the sum of its proper divisors (296517689004).

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

212012420244 is a wasteful number, since it uses less digits than its factorization.

212012420244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436424 (or 436422 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 212012420244 its reverse (442024210212), we get a palindrome (654036630456).

The spelling of 212012420244 in words is "two hundred twelve billion, twelve million, four hundred twenty thousand, two hundred forty-four".