1100220220020 has 72 divisors (see below), whose sum is σ = 3220380033696. Its totient is φ = 280635874112.

The previous prime is 1100220220013. The next prime is 1100220220067. The reversal of 1100220220020 is 200220220011.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1100220219978 and 1100220220005.

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, 17300022 + ... + 17363501.

It is an arithmetic number, because the mean of its divisors is an integer number (44727500468).

Almost surely, 2^{1100220220020} is an apocalyptic number.

1100220220020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1100220220020 is an abundant number, since it is smaller than the sum of its proper divisors (2120159813676).

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

1100220220020 is a wasteful number, since it uses less digits than its factorization.

1100220220020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34663581 (or 34663556 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 1100220220020 its reverse (200220220011), we get a palindrome (1300440440031).

Subtracting from 1100220220020 its reverse (200220220011), we obtain a palindrome (900000000009).

The spelling of 1100220220020 in words is "one trillion, one hundred billion, two hundred twenty million, two hundred twenty thousand, twenty".