212240044403321 has 32 divisors (see below), whose sum is σ = 245498120828928. Its totient is φ = 181341087863040.

The previous prime is 212240044403291. The next prime is 212240044403353. The reversal of 212240044403321 is 123304440042212.

It is a happy number.

212240044403321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212240044403321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212240044408321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3440565140 + ... + 3440626826.

It is an arithmetic number, because the mean of its divisors is an integer number (7671816275904).

Almost surely, 2^{212240044403321} is an apocalyptic number.

It is an amenable number.

212240044403321 is a deficient number, since it is larger than the sum of its proper divisors (33258076425607).

212240044403321 is a wasteful number, since it uses less digits than its factorization.

212240044403321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87221.

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 212240044403321 its reverse (123304440042212), we get a palindrome (335544484445533).

The spelling of 212240044403321 in words is "two hundred twelve trillion, two hundred forty billion, forty-four million, four hundred three thousand, three hundred twenty-one".