321122112112 has 40 divisors (see below), whose sum is σ = 625626894816. Its totient is φ = 159672139776.

The previous prime is 321122112109. The next prime is 321122112137. The reversal of 321122112112 is 211211221123.

It is a self number, because there is not a number n which added to its sum of digits gives 321122112112.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2361888 + ... + 2494144.

Almost surely, 2^321122112112 is an apocalyptic number.

It is an amenable number.

321122112112 is a deficient number, since it is larger than the sum of its proper divisors (304504782704).

321122112112 is a wasteful number, since it uses less digits than its factorization.

321122112112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133105 (or 133099 counting only the distinct ones).

The product of its digits is 96, while the sum is 19.

Adding to 321122112112 its reverse (211211221123), we get a palindrome (532333333235).

The spelling of 321122112112 in words is "three hundred twenty-one billion, one hundred twenty-two million, one hundred twelve thousand, one hundred twelve".