211224304244 has 6 divisors (see below), whose sum is σ = 369642532434. Its totient is φ = 105612152120.

The previous prime is 211224304211. The next prime is 211224304279. The reversal of 211224304244 is 442403422112.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 163814467600 + 47409836644 = 404740^2 + 217738^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26403038027 + ... + 26403038034.

It is an arithmetic number, because the mean of its divisors is an integer number (61607088739).

Almost surely, 2^211224304244 is an apocalyptic number.

It is an amenable number.

211224304244 is a deficient number, since it is larger than the sum of its proper divisors (158418228190).

211224304244 is a wasteful number, since it uses less digits than its factorization.

211224304244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52806076065 (or 52806076063 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 211224304244 its reverse (442403422112), we get a palindrome (653627726356).

The spelling of 211224304244 in words is "two hundred eleven billion, two hundred twenty-four million, three hundred four thousand, two hundred forty-four".