311222022123212 has 12 divisors (see below), whose sum is σ = 545645264299296. Its totient is φ = 155323375180560.

The previous prime is 311222022123169. The next prime is 311222022123253. The reversal of 311222022123212 is 212321220222113.

It is a super-2 number, since 2×311222022123212² (a number of 30 digits) contains 22 as substring.

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, 71908967828 + ... + 71908972155.

It is an arithmetic number, because the mean of its divisors is an integer number (45470438691608).

Almost surely, 2^{311222022123212} is an apocalyptic number.

It is an amenable number.

311222022123212 is a deficient number, since it is larger than the sum of its proper divisors (234423242176084).

311222022123212 is a wasteful number, since it uses less digits than its factorization.

311222022123212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143817940528 (or 143817940526 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 311222022123212 its reverse (212321220222113), we get a palindrome (523543242345325).

The spelling of 311222022123212 in words is "three hundred eleven trillion, two hundred twenty-two billion, twenty-two million, one hundred twenty-three thousand, two hundred twelve".