111222113131 has 32 divisors (see below), whose sum is σ = 123949647360. Its totient is φ = 99333734400.

The previous prime is 111222113129. The next prime is 111222113137. The reversal of 111222113131 is 131311222111.

It is a cyclic number.

It is not a de Polignac number, because 111222113131 - 2¹ = 111222113129 is a prime.

It is a super-2 number, since 2×111222113131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111222113099 and 111222113108.

It is not an unprimeable number, because it can be changed into a prime (111222113137) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5561991 + ... + 5581951.

It is an arithmetic number, because the mean of its divisors is an integer number (3873426480).

Almost surely, 2^111222113131 is an apocalyptic number.

111222113131 is a deficient number, since it is larger than the sum of its proper divisors (12727534229).

111222113131 is a wasteful number, since it uses less digits than its factorization.

111222113131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20215.

The product of its digits is 72, while the sum is 19.

Adding to 111222113131 its reverse (131311222111), we get a palindrome (242533335242).

The spelling of 111222113131 in words is "one hundred eleven billion, two hundred twenty-two million, one hundred thirteen thousand, one hundred thirty-one".