111502221055 has 16 divisors (see below), whose sum is σ = 135064281600. Its totient is φ = 88363994400.

The previous prime is 111502221053. The next prime is 111502221067. The reversal of 111502221055 is 550122205111.

It is a happy number.

It is not a de Polignac number, because 111502221055 - 2¹ = 111502221053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111502221053) 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, 65356 + ... + 476734.

It is an arithmetic number, because the mean of its divisors is an integer number (8441517600).

Almost surely, 2^111502221055 is an apocalyptic number.

111502221055 is a deficient number, since it is larger than the sum of its proper divisors (23562060545).

111502221055 is a wasteful number, since it uses less digits than its factorization.

111502221055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411894.

The product of its (nonzero) digits is 1000, while the sum is 25.

Adding to 111502221055 its reverse (550122205111), we get a palindrome (661624426166).

The spelling of 111502221055 in words is "one hundred eleven billion, five hundred two million, two hundred twenty-one thousand, fifty-five".