111012212012011 has 4 divisors (see below), whose sum is σ = 114840219322800. Its totient is φ = 107184204701224.

The previous prime is 111012212012003. The next prime is 111012212012047. The reversal of 111012212012011 is 110210212210111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 111012212012011 - 2³ = 111012212012003 is a prime.

It is a super-2 number, since 2×111012212012011² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111012212013011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1914003655351 + ... + 1914003655408.

It is an arithmetic number, because the mean of its divisors is an integer number (28710054830700).

Almost surely, 2^{111012212012011} is an apocalyptic number.

111012212012011 is a deficient number, since it is larger than the sum of its proper divisors (3828007310789).

111012212012011 is an equidigital number, since it uses as much as digits as its factorization.

111012212012011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3828007310788.

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

Adding to 111012212012011 its reverse (110210212210111), we get a palindrome (221222424222122).

The spelling of 111012212012011 in words is "one hundred eleven trillion, twelve billion, two hundred twelve million, twelve thousand, eleven".