212102012324 has 12 divisors (see below), whose sum is σ = 374853557148. Its totient is φ = 105000996000.

The previous prime is 212102012293. The next prime is 212102012347. The reversal of 212102012324 is 423210201212.

It can be written as a sum of positive squares in 2 ways, for example, as 116225082724 + 95876929600 = 340918^2 + 309640^2 .

It is a junction number, because it is equal to n+sod(n) for n = 212102012296 and 212102012305.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 262502087 + ... + 262502894.

It is an arithmetic number, because the mean of its divisors is an integer number (31237796429).

Almost surely, 2^212102012324 is an apocalyptic number.

It is an amenable number.

212102012324 is a deficient number, since it is larger than the sum of its proper divisors (162751544824).

212102012324 is a wasteful number, since it uses less digits than its factorization.

212102012324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525005086 (or 525005084 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 212102012324 its reverse (423210201212), we get a palindrome (635312213536).

The spelling of 212102012324 in words is "two hundred twelve billion, one hundred two million, twelve thousand, three hundred twenty-four".