110131221222 has 72 divisors (see below), whose sum is σ = 271326575520. Its totient is φ = 32222282400.

The previous prime is 110131221217. The next prime is 110131221259. The reversal of 110131221222 is 222122131011.

110131221222 is a `hidden beast` number, since 110 + 1 + 312 + 21 + 222 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 110131221195 and 110131221204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 808654 + ... + 934977.

It is an arithmetic number, because the mean of its divisors is an integer number (3768424660).

Almost surely, 2^110131221222 is an apocalyptic number.

110131221222 is an abundant number, since it is smaller than the sum of its proper divisors (161195354298).

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

110131221222 is a wasteful number, since it uses less digits than its factorization.

110131221222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1743690 (or 1743676 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 110131221222 its reverse (222122131011), we get a palindrome (332253352233).

The spelling of 110131221222 in words is "one hundred ten billion, one hundred thirty-one million, two hundred twenty-one thousand, two hundred twenty-two".