111222123011 has 8 divisors (see below), whose sum is σ = 114205378560. Its totient is φ = 108275472072.

The previous prime is 111222123007. The next prime is 111222123041. The reversal of 111222123011 is 110321222111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111222123011 - 2² = 111222123007 is a prime.

It is a super-2 number, since 2×111222123011² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111222123041) 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 7 ways as a sum of consecutive naturals, for example, 9144995 + ... + 9157148.

It is an arithmetic number, because the mean of its divisors is an integer number (14275672320).

Almost surely, 2^111222123011 is an apocalyptic number.

111222123011 is a deficient number, since it is larger than the sum of its proper divisors (2983255549).

111222123011 is a wasteful number, since it uses less digits than its factorization.

111222123011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18302305.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 111222123011 its reverse (110321222111), we get a palindrome (221543345122).

The spelling of 111222123011 in words is "one hundred eleven billion, two hundred twenty-two million, one hundred twenty-three thousand, eleven".