211404012444 has 72 divisors (see below), whose sum is σ = 536270935200. Its totient is φ = 70219239552.

The previous prime is 211404012349. The next prime is 211404012481. The reversal of 211404012444 is 444210404112.

It is a happy number.

211404012444 is a `hidden beast` number, since 2 + 1 + 14 + 0 + 401 + 244 + 4 = 666.

211404012444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 23 ways as a sum of consecutive naturals, for example, 22396894 + ... + 22406330.

Almost surely, 2^211404012444 is an apocalyptic number.

It is an amenable number.

211404012444 is an abundant number, since it is smaller than the sum of its proper divisors (324866922756).

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

211404012444 is a wasteful number, since it uses less digits than its factorization.

211404012444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11579 (or 11574 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 27.

Adding to 211404012444 its reverse (444210404112), we get a palindrome (655614416556).

The spelling of 211404012444 in words is "two hundred eleven billion, four hundred four million, twelve thousand, four hundred forty-four".