212210344330 has 48 divisors (see below), whose sum is σ = 401024562120. Its totient is φ = 80844583424.

The previous prime is 212210344321. The next prime is 212210344403. The reversal of 212210344330 is 33443012212.

It can be written as a sum of positive squares in 4 ways, for example, as 190386486889 + 21823857441 = 436333^2 + 147729^2 .

It is a junction number, because it is equal to n+sod(n) for n = 212210344295 and 212210344304.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1146486 + ... + 1318654.

Almost surely, 2^212210344330 is an apocalyptic number.

212210344330 is a deficient number, since it is larger than the sum of its proper divisors (188814217790).

212210344330 is a wasteful number, since it uses less digits than its factorization.

212210344330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172455 (or 172432 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 212210344330 its reverse (33443012212), we get a palindrome (245653356542).

The spelling of 212210344330 in words is "two hundred twelve billion, two hundred ten million, three hundred forty-four thousand, three hundred thirty".