111012121011212 has 96 divisors (see below), whose sum is σ = 202772013072384. Its totient is φ = 53120669356800.

The previous prime is 111012121011203. The next prime is 111012121011227. The reversal of 111012121011212 is 212110121210111.

It is a super-2 number, since 2×111012121011212² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11813565698 + ... + 11813575094.

It is an arithmetic number, because the mean of its divisors is an integer number (2112208469504).

Almost surely, 2^{111012121011212} is an apocalyptic number.

It is an amenable number.

111012121011212 is a deficient number, since it is larger than the sum of its proper divisors (91759892061172).

111012121011212 is a wasteful number, since it uses less digits than its factorization.

111012121011212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12439 (or 12437 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 111012121011212 its reverse (212110121210111), we get a palindrome (323122242221323).

The spelling of 111012121011212 in words is "one hundred eleven trillion, twelve billion, one hundred twenty-one million, eleven thousand, two hundred twelve".