1113221211320 has 64 divisors (see below), whose sum is σ = 2543721818400. Its totient is φ = 438368071680.

The previous prime is 1113221211299. The next prime is 1113221211371. The reversal of 1113221211320 is 231121223111.

It is a super-2 number, since 2×1113221211320² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1113221211292 and 1113221211301.

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 15 ways as a sum of consecutive naturals, for example, 4183040 + ... + 4441200.

Almost surely, 2^{1113221211320} is an apocalyptic number.

1113221211320 is a gapful number since it is divisible by the number (10) 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 1113221211320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1271860909200).

1113221211320 is an abundant number, since it is smaller than the sum of its proper divisors (1430500607080).

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

1113221211320 is a wasteful number, since it uses less digits than its factorization.

1113221211320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259848 (or 259844 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 1113221211320 its reverse (231121223111), we get a palindrome (1344342434431).

The spelling of 1113221211320 in words is "one trillion, one hundred thirteen billion, two hundred twenty-one million, two hundred eleven thousand, three hundred twenty".