1110211221222 has 96 divisors (see below), whose sum is σ = 2538737510400. Its totient is φ = 349669910016.

The previous prime is 1110211221181. The next prime is 1110211221227. The reversal of 1110211221222 is 2221221120111.

1110211221222 is a `hidden beast` number, since 1 + 1 + 10 + 211 + 221 + 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 = 1110211221195 and 1110211221204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1110211221227) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 236062123 + ... + 236066825.

It is an arithmetic number, because the mean of its divisors is an integer number (26445182400).

Almost surely, 2^{1110211221222} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1110211221222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1269368755200).

1110211221222 is an abundant number, since it is smaller than the sum of its proper divisors (1428526289178).

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

1110211221222 is a wasteful number, since it uses less digits than its factorization.

1110211221222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6402 (or 6399 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 1110211221222 its reverse (2221221120111), we get a palindrome (3331432341333).

The spelling of 1110211221222 in words is "one trillion, one hundred ten billion, two hundred eleven million, two hundred twenty-one thousand, two hundred twenty-two".