111100221120131 has 32 divisors (see below), whose sum is σ = 112494509309952. Its totient is φ = 109718503614720.

The previous prime is 111100221120089. The next prime is 111100221120137. The reversal of 111100221120131 is 131021122001111.

It is a cyclic number.

It is not a de Polignac number, because 111100221120131 - 2¹⁸ = 111100220857987 is a prime.

It is a super-2 number, since 2×111100221120131² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111100221120137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14147483801 + ... + 14147491653.

It is an arithmetic number, because the mean of its divisors is an integer number (3515453415936).

Almost surely, 2^{111100221120131} is an apocalyptic number.

111100221120131 is a deficient number, since it is larger than the sum of its proper divisors (1394288189821).

111100221120131 is a wasteful number, since it uses less digits than its factorization.

111100221120131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9323.

The product of its (nonzero) digits is 24, while the sum is 17.

Adding to 111100221120131 its reverse (131021122001111), we get a palindrome (242121343121242).

The spelling of 111100221120131 in words is "one hundred eleven trillion, one hundred billion, two hundred twenty-one million, one hundred twenty thousand, one hundred thirty-one".