111222121132 has 48 divisors (see below), whose sum is σ = 197421235200. Its totient is φ = 54821999232.

The previous prime is 111222121081. The next prime is 111222121133. The reversal of 111222121132 is 231121222111.

It is a super-2 number, since 2×111222121132² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (111222121133) 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, 118699768 + ... + 118700704.

It is an arithmetic number, because the mean of its divisors is an integer number (4112942400).

Almost surely, 2^111222121132 is an apocalyptic number.

It is an amenable number.

111222121132 is a deficient number, since it is larger than the sum of its proper divisors (86199114068).

111222121132 is a wasteful number, since it uses less digits than its factorization.

111222121132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2110 (or 2108 counting only the distinct ones).

The product of its digits is 96, while the sum is 19.

Adding to 111222121132 its reverse (231121222111), we get a palindrome (342343343243).

The spelling of 111222121132 in words is "one hundred eleven billion, two hundred twenty-two million, one hundred twenty-one thousand, one hundred thirty-two".