211420144404 has 36 divisors (see below), whose sum is σ = 610769306784. Its totient is φ = 60405755472.

The previous prime is 211420144379. The next prime is 211420144471. The reversal of 211420144404 is 404441024112.

It is a happy number.

211420144404 is a `hidden beast` number, since 2 + 1 + 14 + 201 + 4 + 440 + 4 = 666.

211420144404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

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 11 ways as a sum of consecutive naturals, for example, 419484162 + ... + 419484665.

Almost surely, 2^211420144404 is an apocalyptic number.

It is an amenable number.

211420144404 is an abundant number, since it is smaller than the sum of its proper divisors (399349162380).

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

211420144404 is a wasteful number, since it uses less digits than its factorization.

211420144404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 838968844 (or 838968839 counting only the distinct ones).

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

Adding to 211420144404 its reverse (404441024112), we get a palindrome (615861168516).

The spelling of 211420144404 in words is "two hundred eleven billion, four hundred twenty million, one hundred forty-four thousand, four hundred four".