1120112221212 has 144 divisors (see below), whose sum is σ = 2964194224992. Its totient is φ = 356316710400.

The previous prime is 1120112221153. The next prime is 1120112221253. The reversal of 1120112221212 is 2121222110211.

1120112221212 is a `hidden beast` number, since 1 + 120 + 112 + 221 + 212 = 666.

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

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 47 ways as a sum of consecutive naturals, for example, 14356018 + ... + 14433830.

It is an arithmetic number, because the mean of its divisors is an integer number (20584682118).

Almost surely, 2^{1120112221212} is an apocalyptic number.

1120112221212 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 1120112221212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1482097112496).

1120112221212 is an abundant number, since it is smaller than the sum of its proper divisors (1844082003780).

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

1120112221212 is a wasteful number, since it uses less digits than its factorization.

1120112221212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78068 (or 78063 counting only the distinct ones).

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

Adding to 1120112221212 its reverse (2121222110211), we get a palindrome (3241334331423).

The spelling of 1120112221212 in words is "one trillion, one hundred twenty billion, one hundred twelve million, two hundred twenty-one thousand, two hundred twelve".