111211010002012 has 24 divisors (see below), whose sum is σ = 194681439121680. Its totient is φ = 55587743614080.

The previous prime is 111211010002009. The next prime is 111211010002013. The reversal of 111211010002012 is 210200010112111.

It is a happy number.

It is a super-2 number, since 2×111211010002012² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111211010001983 and 111211010002001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111211010002013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 239379187 + ... + 239843317.

It is an arithmetic number, because the mean of its divisors is an integer number (8111726630070).

Almost surely, 2^{111211010002012} is an apocalyptic number.

It is an amenable number.

111211010002012 is a deficient number, since it is larger than the sum of its proper divisors (83470429119668).

111211010002012 is a wasteful number, since it uses less digits than its factorization.

111211010002012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483141 (or 483139 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 111211010002012 its reverse (210200010112111), we get a palindrome (321411020114123).

The spelling of 111211010002012 in words is "one hundred eleven trillion, two hundred eleven billion, ten million, two thousand, twelve".