111212003011 has 4 divisors (see below), whose sum is σ = 111224717352. Its totient is φ = 111199288672.

The previous prime is 111212003003. The next prime is 111212003047. The reversal of 111212003011 is 110300212111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 110300212111 = 208213 ⋅529747.

It is a cyclic number.

It is not a de Polignac number, because 111212003011 - 2³ = 111212003003 is a prime.

It is a super-2 number, since 2×111212003011² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111212002982 and 111212003000.

It is not an unprimeable number, because it can be changed into a prime (111212003611) 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, 6344041 + ... + 6361546.

It is an arithmetic number, because the mean of its divisors is an integer number (27806179338).

Almost surely, 2^111212003011 is an apocalyptic number.

111212003011 is a deficient number, since it is larger than the sum of its proper divisors (12714341).

111212003011 is an equidigital number, since it uses as much as digits as its factorization.

111212003011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12714340.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 111212003011 its reverse (110300212111), we get a palindrome (221512215122).

The spelling of 111212003011 in words is "one hundred eleven billion, two hundred twelve million, three thousand, eleven".