210022312 has 16 divisors (see below), whose sum is σ = 395514900. Its totient is φ = 104551680.

The previous prime is 210022297. The next prime is 210022339. The reversal of 210022312 is 213220012.

It can be written as a sum of positive squares in 2 ways, for example, as 175986756 + 34035556 = 13266^2 + 5834^2 .

It is a junction number, because it is equal to n+sod(n) for n = 210022292 and 210022301.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55489 + ... + 59152.

Almost surely, 2^210022312 is an apocalyptic number.

It is an amenable number.

210022312 is a deficient number, since it is larger than the sum of its proper divisors (185492588).

210022312 is a wasteful number, since it uses less digits than its factorization.

210022312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114876 (or 114872 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 210022312 is about 14492.1465628802. The cubic root of 210022312 is about 594.4132454493.

Adding to 210022312 its reverse (213220012), we get a palindrome (423242324).

The spelling of 210022312 in words is "two hundred ten million, twenty-two thousand, three hundred twelve".