321111211112 has 32 divisors (see below), whose sum is σ = 620165599680. Its totient is φ = 155783174400.

The previous prime is 321111211111. The next prime is 321111211123. The reversal of 321111211112 is 211112111123.

It is a super-2 number, since 2×321111211112² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (321111211111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3038993 + ... + 3142880.

It is an arithmetic number, because the mean of its divisors is an integer number (19380174990).

Almost surely, 2^321111211112 is an apocalyptic number.

It is an amenable number.

321111211112 is a deficient number, since it is larger than the sum of its proper divisors (299054388568).

321111211112 is a wasteful number, since it uses less digits than its factorization.

321111211112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6182073 (or 6182069 counting only the distinct ones).

The product of its digits is 24, while the sum is 17.

Adding to 321111211112 its reverse (211112111123), we get a palindrome (532223322235).

It can be divided in two parts, 3 and 21111211112, that multiplied together give a palindrome (63333633336).

The spelling of 321111211112 in words is "three hundred twenty-one billion, one hundred eleven million, two hundred eleven thousand, one hundred twelve".