1100022221100 has 144 divisors (see below), whose sum is σ = 3565910267136. Its totient is φ = 259464672000.

The previous prime is 1100022221033. The next prime is 1100022221189. The reversal of 1100022221100 is 11222200011.

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

It is a zygodrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4382496 + ... + 4626695.

It is an arithmetic number, because the mean of its divisors is an integer number (24763265744).

Almost surely, 2^{1100022221100} is an apocalyptic number.

1100022221100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1100022221100 is an abundant number, since it is smaller than the sum of its proper divisors (2465888046036).

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

1100022221100 is a wasteful number, since it uses less digits than its factorization.

1100022221100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9009256 (or 9009249 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1100022221100 its reverse (11222200011), we get a palindrome (1111244421111).

The spelling of 1100022221100 in words is "one trillion, one hundred billion, twenty-two million, two hundred twenty-one thousand, one hundred".