1200223111320 has 96 divisors (see below), whose sum is σ = 3907557173520. Its totient is φ = 319498917120.

The previous prime is 1200223111247. The next prime is 1200223111349. The reversal of 1200223111320 is 231113220021.

1200223111320 is a `hidden beast` number, since 1 + 200 + 22 + 311 + 132 + 0 = 666.

It is a super-2 number, since 2×1200223111320² (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 a junction number, because it is equal to n+sod(n) for n = 1200223111293 and 1200223111302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2713839 + ... + 3124958.

Almost surely, 2^{1200223111320} is an apocalyptic number.

1200223111320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1200223111320 is an abundant number, since it is smaller than the sum of its proper divisors (2707334062200).

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

1200223111320 is a wasteful number, since it uses less digits than its factorization.

1200223111320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5839385 (or 5839378 counting only the distinct ones).

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

Adding to 1200223111320 its reverse (231113220021), we get a palindrome (1431336331341).

The spelling of 1200223111320 in words is "one trillion, two hundred billion, two hundred twenty-three million, one hundred eleven thousand, three hundred twenty".