321220022201212 has 6 divisors (see below), whose sum is σ = 562135038852128. Its totient is φ = 160610011100604.

The previous prime is 321220022201191. The next prime is 321220022201237. The reversal of 321220022201212 is 212102220022123.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40152502775148 + ... + 40152502775155.

Almost surely, 2^{321220022201212} is an apocalyptic number.

It is an amenable number.

321220022201212 is a deficient number, since it is larger than the sum of its proper divisors (240915016650916).

321220022201212 is a wasteful number, since it uses less digits than its factorization.

321220022201212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80305005550307 (or 80305005550305 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 321220022201212 its reverse (212102220022123), we get a palindrome (533322242223335).

The spelling of 321220022201212 in words is "three hundred twenty-one trillion, two hundred twenty billion, twenty-two million, two hundred one thousand, two hundred twelve".