111020122011 has 16 divisors (see below), whose sum is σ = 148189870080. Its totient is φ = 73931941440.

The previous prime is 111020122007. The next prime is 111020122019. The reversal of 111020122011 is 110221020111.

It is not a de Polignac number, because 111020122011 - 2² = 111020122007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111020122019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18229855 + ... + 18235943.

It is an arithmetic number, because the mean of its divisors is an integer number (9261866880).

Almost surely, 2^111020122011 is an apocalyptic number.

111020122011 is a deficient number, since it is larger than the sum of its proper divisors (37169748069).

111020122011 is a wasteful number, since it uses less digits than its factorization.

111020122011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11786.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 111020122011 its reverse (110221020111), we get a palindrome (221241142122).

The spelling of 111020122011 in words is "one hundred eleven billion, twenty million, one hundred twenty-two thousand, eleven".