111210211220012 has 12 divisors (see below), whose sum is σ = 194800953245136. Its totient is φ = 55552796007120.

The previous prime is 111210211220011. The next prime is 111210211220071. The reversal of 111210211220012 is 210022112012111.

It is a super-2 number, since 2×111210211220012² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (111210211220011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13077395939 + ... + 13077404442.

It is an arithmetic number, because the mean of its divisors is an integer number (16233412770428).

Almost surely, 2^{111210211220012} is an apocalyptic number.

It is an amenable number.

111210211220012 is a deficient number, since it is larger than the sum of its proper divisors (83590742025124).

111210211220012 is a wasteful number, since it uses less digits than its factorization.

111210211220012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26154801448 (or 26154801446 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 111210211220012 its reverse (210022112012111), we get a palindrome (321232323232123).

The spelling of 111210211220012 in words is "one hundred eleven trillion, two hundred ten billion, two hundred eleven million, two hundred twenty thousand, twelve".