111212022010012 has 96 divisors (see below), whose sum is σ = 245292684166656. Its totient is φ = 42857314272000.

The previous prime is 111212022010003. The next prime is 111212022010093. The reversal of 111212022010012 is 210010220212111.

111212022010012 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×111212022010012² (a number of 29 digits) contains 22 as substring.

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 31 ways as a sum of consecutive naturals, for example, 29221783 + ... + 32807569.

It is an arithmetic number, because the mean of its divisors is an integer number (2555132126736).

Almost surely, 2^{111212022010012} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111212022010012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122646342083328).

111212022010012 is an abundant number, since it is smaller than the sum of its proper divisors (134080662156644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111212022010012 is a wasteful number, since it uses less digits than its factorization.

111212022010012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3586907 (or 3586905 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 111212022010012 its reverse (210010220212111), we get a palindrome (321222242222123).

It can be divided in two parts, 1112120 and 22010012, that added together give a palindrome (23122132).

The spelling of 111212022010012 in words is "one hundred eleven trillion, two hundred twelve billion, twenty-two million, ten thousand, twelve".