111012221101 has 16 divisors (see below), whose sum is σ = 123770237760. Its totient is φ = 98949876480.

The previous prime is 111012221083. The next prime is 111012221149. The reversal of 111012221101 is 101122210111.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 111012221101 - 2¹⁵ = 111012188333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111012221171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 934611 + ... + 1046671.

It is an arithmetic number, because the mean of its divisors is an integer number (7735639860).

Almost surely, 2^111012221101 is an apocalyptic number.

It is an amenable number.

111012221101 is a deficient number, since it is larger than the sum of its proper divisors (12758016659).

111012221101 is a wasteful number, since it uses less digits than its factorization.

111012221101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115164.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 111012221101 its reverse (101122210111), we get a palindrome (212134431212).

The spelling of 111012221101 in words is "one hundred eleven billion, twelve million, two hundred twenty-one thousand, one hundred one".