212224043124 has 36 divisors (see below), whose sum is σ = 537324733764. Its totient is φ = 70626686592.

The previous prime is 212224043027. The next prime is 212224043149. The reversal of 212224043124 is 421340422212.

It is a happy number.

212224043124 is a `hidden beast` number, since 2 + 1 + 2 + 224 + 0 + 431 + 2 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 123222060900 + 89001982224 = 351030^2 + 298332^2 .

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 polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4755027 + ... + 4799450.

It is an arithmetic number, because the mean of its divisors is an integer number (14925687049).

Almost surely, 2^212224043124 is an apocalyptic number.

It is an amenable number.

212224043124 is an abundant number, since it is smaller than the sum of its proper divisors (325100690640).

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

212224043124 is a wasteful number, since it uses less digits than its factorization.

212224043124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9555104 (or 9555099 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 212224043124 its reverse (421340422212), we get a palindrome (633564465336).

The spelling of 212224043124 in words is "two hundred twelve billion, two hundred twenty-four million, forty-three thousand, one hundred twenty-four".