210211312 has 20 divisors (see below), whose sum is σ = 407552040. Its totient is φ = 105036608.

The previous prime is 210211297. The next prime is 210211327. The reversal of 210211312 is 213112012.

It is an interprime number because it is at equal distance from previous prime (210211297) and next prime (210211327).

It is a super-2 number, since 2×210211312² = 88377591385522688, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 210211292 and 210211301.

It is a congruent number.

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, 28239 + ... + 34897.

It is an arithmetic number, because the mean of its divisors is an integer number (20377602).

Almost surely, 2^210211312 is an apocalyptic number.

It is an amenable number.

210211312 is a deficient number, since it is larger than the sum of its proper divisors (197340728).

210211312 is a wasteful number, since it uses less digits than its factorization.

210211312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8640 (or 8634 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 210211312 is about 14498.6658696585. The cubic root of 210211312 is about 594.5914970194.

Adding to 210211312 its reverse (213112012), we get a palindrome (423323324).

The spelling of 210211312 in words is "two hundred ten million, two hundred eleven thousand, three hundred twelve".