1103011012220 has 96 divisors (see below), whose sum is σ = 2510276287680. Its totient is φ = 407101044480.

The previous prime is 1103011012193. The next prime is 1103011012241. The reversal of 1103011012220 is 222101103011.

It is a junction number, because it is equal to n+sod(n) for n = 1103011012195 and 1103011012204.

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 31 ways as a sum of consecutive naturals, for example, 188192090 + ... + 188197950.

It is an arithmetic number, because the mean of its divisors is an integer number (26148711330).

Almost surely, 2^{1103011012220} is an apocalyptic number.

1103011012220 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 1103011012220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1255138143840).

1103011012220 is an abundant number, since it is smaller than the sum of its proper divisors (1407265275460).

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

1103011012220 is a wasteful number, since it uses less digits than its factorization.

1103011012220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10192 (or 10164 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 1103011012220 its reverse (222101103011), we get a palindrome (1325112115231).

The spelling of 1103011012220 in words is "one trillion, one hundred three billion, eleven million, twelve thousand, two hundred twenty".