211244124221312 has 128 divisors (see below), whose sum is σ = 528974649584640. Its totient is φ = 81791037831168.

The previous prime is 211244124221267. The next prime is 211244124221447. The reversal of 211244124221312 is 213122421442112.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 192385058 + ... + 193479969.

It is an arithmetic number, because the mean of its divisors is an integer number (4132614449880).

Almost surely, 2^{211244124221312} is an apocalyptic number.

It is an amenable number.

211244124221312 is an abundant number, since it is smaller than the sum of its proper divisors (317730525363328).

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

211244124221312 is a wasteful number, since it uses less digits than its factorization.

211244124221312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385865108 (or 385865096 counting only the distinct ones).

The product of its digits is 12288, while the sum is 32.

Adding to 211244124221312 its reverse (213122421442112), we get a palindrome (424366545663424).

The spelling of 211244124221312 in words is "two hundred eleven trillion, two hundred forty-four billion, one hundred twenty-four million, two hundred twenty-one thousand, three hundred twelve".