110111221222212 has 192 divisors, whose sum is σ = 311494846924800. Its totient is φ = 29572154127360.

The previous prime is 110111221222183. The next prime is 110111221222243. The reversal of 110111221222212 is 212222122111011.

It is a Harshad number since it is a multiple of its sum of digits (21).

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 63 ways as a sum of consecutive naturals, for example, 1373380158 + ... + 1373460330.

It is an arithmetic number, because the mean of its divisors is an integer number (1622368994400).

Almost surely, 2^{110111221222212} is an apocalyptic number.

110111221222212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 110111221222212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155747423462400).

110111221222212 is an abundant number, since it is smaller than the sum of its proper divisors (201383625702588).

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

110111221222212 is a wasteful number, since it uses less digits than its factorization.

110111221222212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86906 (or 86904 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 110111221222212 its reverse (212222122111011), we get a palindrome (322333343333223).

The spelling of 110111221222212 in words is "one hundred ten trillion, one hundred eleven billion, two hundred twenty-one million, two hundred twenty-two thousand, two hundred twelve".