111122212011 has 8 divisors (see below), whose sum is σ = 148201720320. Its totient is φ = 74062089192.

The previous prime is 111122212007. The next prime is 111122212037. The reversal of 111122212011 is 110212221111.

It is a happy number.

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

It is not a de Polignac number, because 111122212011 - 2² = 111122212007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111122212051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4832991 + ... + 4855928.

It is an arithmetic number, because the mean of its divisors is an integer number (18525215040).

Almost surely, 2^111122212011 is an apocalyptic number.

111122212011 is a deficient number, since it is larger than the sum of its proper divisors (37079508309).

111122212011 is an equidigital number, since it uses as much as digits as its factorization.

111122212011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9692745.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 111122212011 its reverse (110212221111), we get a palindrome (221334433122).

The spelling of 111122212011 in words is "one hundred eleven billion, one hundred twenty-two million, two hundred twelve thousand, eleven".