212140302404144 has 80 divisors (see below), whose sum is σ = 428441972434944. Its totient is φ = 101641947033600.

The previous prime is 212140302404117. The next prime is 212140302404213. The reversal of 212140302404144 is 441404203041212.

It is a self number, because there is not a number n which added to its sum of digits gives 212140302404144.

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, 532802099 + ... + 533200109.

Almost surely, 2^{212140302404144} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212140302404144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214220986217472).

212140302404144 is an abundant number, since it is smaller than the sum of its proper divisors (216301670030800).

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

212140302404144 is a wasteful number, since it uses less digits than its factorization.

212140302404144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408586 (or 408580 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 32.

Adding to 212140302404144 its reverse (441404203041212), we get a palindrome (653544505445356).

The spelling of 212140302404144 in words is "two hundred twelve trillion, one hundred forty billion, three hundred two million, four hundred four thousand, one hundred forty-four".