321012020212 has 12 divisors (see below), whose sum is σ = 604984192036. Its totient is φ = 148159393920.

The previous prime is 321012020207. The next prime is 321012020237. The reversal of 321012020212 is 212020210123.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 101242330596 + 219769689616 = 318186^2 + 468796^2 .

It is a congruent number.

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, 3086653989 + ... + 3086654092.

Almost surely, 2^321012020212 is an apocalyptic number.

It is an amenable number.

321012020212 is a deficient number, since it is larger than the sum of its proper divisors (283972171824).

321012020212 is a wasteful number, since it uses less digits than its factorization.

321012020212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6173308098 (or 6173308096 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 321012020212 its reverse (212020210123), we get a palindrome (533032230335).

The spelling of 321012020212 in words is "three hundred twenty-one billion, twelve million, twenty thousand, two hundred twelve".