212144240016 has 30 divisors (see below), whose sum is σ = 593709227670. Its totient is φ = 70714746624.

The previous prime is 212144239987. The next prime is 212144240051. The reversal of 212144240016 is 610042441212.

212144240016 is a `hidden beast` number, since 2 + 1 + 214 + 42 + 400 + 1 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 109757039616 + 102387200400 = 331296^2 + 319980^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 736611801 + ... + 736612088.

It is an arithmetic number, because the mean of its divisors is an integer number (19790307589).

Almost surely, 2^212144240016 is an apocalyptic number.

It is an amenable number.

212144240016 is an abundant number, since it is smaller than the sum of its proper divisors (381564987654).

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

212144240016 is a wasteful number, since it uses less digits than its factorization.

212144240016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1473223903 (or 1473223894 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 212144240016 its reverse (610042441212), we get a palindrome (822186681228).

The spelling of 212144240016 in words is "two hundred twelve billion, one hundred forty-four million, two hundred forty thousand, sixteen".