111222412442240 has 128 divisors (see below), whose sum is σ = 290067613056000. Its totient is φ = 40443869859840.

The previous prime is 111222412442233. The next prime is 111222412442243. The reversal of 111222412442240 is 42244214222111.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×111222412442240² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 111222412442197 and 111222412442206.

It is not an unprimeable number, because it can be changed into a prime (111222412442243) 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 15 ways as a sum of consecutive naturals, for example, 862398881 + ... + 862527839.

It is an arithmetic number, because the mean of its divisors is an integer number (2266153227000).

Almost surely, 2^{111222412442240} is an apocalyptic number.

111222412442240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111222412442240 is an abundant number, since it is smaller than the sum of its proper divisors (178845200613760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111222412442240 is a wasteful number, since it uses less digits than its factorization.

111222412442240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251498 (or 251486 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 32.

Adding to 111222412442240 its reverse (42244214222111), we get a palindrome (153466626664351).

The spelling of 111222412442240 in words is "one hundred eleven trillion, two hundred twenty-two billion, four hundred twelve million, four hundred forty-two thousand, two hundred forty".