1120222111212 has 144 divisors (see below), whose sum is σ = 2923703258112. Its totient is φ = 361384433280.

The previous prime is 1120222111189. The next prime is 1120222111237. The reversal of 1120222111212 is 2121112220211.

1120222111212 is a `hidden beast` number, since 1 + 120 + 222 + 111 + 212 = 666.

It is a super-2 number, since 2×1120222111212² (a number of 25 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 204753637 + ... + 204759107.

It is an arithmetic number, because the mean of its divisors is an integer number (20303494848).

Almost surely, 2^{1120222111212} is an apocalyptic number.

1120222111212 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 1120222111212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1461851629056).

1120222111212 is an abundant number, since it is smaller than the sum of its proper divisors (1803481146900).

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

1120222111212 is a wasteful number, since it uses less digits than its factorization.

1120222111212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6308 (or 6303 counting only the distinct ones).

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

Adding to 1120222111212 its reverse (2121112220211), we get a palindrome (3241334331423).

The spelling of 1120222111212 in words is "one trillion, one hundred twenty billion, two hundred twenty-two million, one hundred eleven thousand, two hundred twelve".