1200223310112 has 144 divisors (see below), whose sum is σ = 3514925232000. Its totient is φ = 388314680832.

The previous prime is 1200223310107. The next prime is 1200223310141. The reversal of 1200223310112 is 2110133220021.

1200223310112 is a `hidden beast` number, since 1 + 20 + 0 + 223 + 310 + 112 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×1200223310112² (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 (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 895314 + ... + 1789422.

It is an arithmetic number, because the mean of its divisors is an integer number (24409203000).

Almost surely, 2^{1200223310112} is an apocalyptic number.

1200223310112 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 1200223310112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1757462616000).

1200223310112 is an abundant number, since it is smaller than the sum of its proper divisors (2314701921888).

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

1200223310112 is a wasteful number, since it uses less digits than its factorization.

1200223310112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 894263 (or 894252 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1200223310112 its reverse (2110133220021), we get a palindrome (3310356530133).

Subtracting 1200223310112 from its reverse (2110133220021), we obtain a palindrome (909909909909).

The spelling of 1200223310112 in words is "one trillion, two hundred billion, two hundred twenty-three million, three hundred ten thousand, one hundred twelve".