321201012212 has 12 divisors (see below), whose sum is σ = 562365807780. Its totient is φ = 160525067136.

The previous prime is 321201012199. The next prime is 321201012259. The reversal of 321201012212 is 212210102123.

It can be written as a sum of positive squares in 2 ways, for example, as 238022991376 + 83178020836 = 487876^2 + 288406^2 .

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, 18850163 + ... + 18867194.

It is an arithmetic number, because the mean of its divisors is an integer number (46863817315).

Almost surely, 2^321201012212 is an apocalyptic number.

It is an amenable number.

321201012212 is a deficient number, since it is larger than the sum of its proper divisors (241164795568).

321201012212 is a wasteful number, since it uses less digits than its factorization.

321201012212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37719490 (or 37719488 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 321201012212 its reverse (212210102123), we get a palindrome (533411114335).

The spelling of 321201012212 in words is "three hundred twenty-one billion, two hundred one million, twelve thousand, two hundred twelve".