1100223543440 has 80 divisors (see below), whose sum is σ = 2924282000640. Its totient is φ = 377112291840.

The previous prime is 1100223543431. The next prime is 1100223543467. The reversal of 1100223543440 is 443453220011.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1705541 + ... + 2260379.

It is an arithmetic number, because the mean of its divisors is an integer number (36553525008).

Almost surely, 2^{1100223543440} is an apocalyptic number.

1100223543440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1100223543440 is an abundant number, since it is smaller than the sum of its proper divisors (1824058457200).

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

1100223543440 is a wasteful number, since it uses less digits than its factorization.

1100223543440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558400 (or 558394 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 1100223543440 its reverse (443453220011), we get a palindrome (1543676763451).

The spelling of 1100223543440 in words is "one trillion, one hundred billion, two hundred twenty-three million, five hundred forty-three thousand, four hundred forty".