1111201223310 has 96 divisors (see below), whose sum is σ = 2922472006272. Its totient is φ = 292909478400.

The previous prime is 1111201223303. The next prime is 1111201223311. The reversal of 1111201223310 is 133221021111.

1111201223310 is a `hidden beast` number, since 1 + 11 + 120 + 1 + 223 + 310 = 666.

It is a super-2 number, since 2×1111201223310² (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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111201223311) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5509467 + ... + 5707593.

It is an arithmetic number, because the mean of its divisors is an integer number (30442416732).

Almost surely, 2^{1111201223310} is an apocalyptic number.

1111201223310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1111201223310, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1461236003136).

1111201223310 is an abundant number, since it is smaller than the sum of its proper divisors (1811270782962).

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

1111201223310 is a wasteful number, since it uses less digits than its factorization.

1111201223310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198858 (or 198855 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 1111201223310 its reverse (133221021111), we get a palindrome (1244422244421).

The spelling of 1111201223310 in words is "one trillion, one hundred eleven billion, two hundred one million, two hundred twenty-three thousand, three hundred ten".