321000212 has 48 divisors (see below), whose sum is σ = 639038400. Its totient is φ = 139864320.

The previous prime is 321000181. The next prime is 321000241. The reversal of 321000212 is 212000123.

It is a happy number.

It is a super-2 number, since 2×321000212² = 206082272208089888, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 321000193 and 321000202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 561887 + ... + 562457.

It is an arithmetic number, because the mean of its divisors is an integer number (13313300).

Almost surely, 2^321000212 is an apocalyptic number.

It is an amenable number.

321000212 is a deficient number, since it is larger than the sum of its proper divisors (318038188).

321000212 is a wasteful number, since it uses less digits than its factorization.

321000212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1176 (or 1174 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 321000212 is about 17916.4787835110. The cubic root of 321000212 is about 684.7022784912.

Adding to 321000212 its reverse (212000123), we get a palindrome (533000335).

The spelling of 321000212 in words is "three hundred twenty-one million, two hundred twelve", and thus it is an aban number.