1100000221101 has 12 divisors (see below), whose sum is σ = 1672514956320. Its totient is φ = 694736981640.

The previous prime is 1100000221043. The next prime is 1100000221129. The reversal of 1100000221101 is 1011220000011.

It is a happy number.

It is not a de Polignac number, because 1100000221101 - 2⁷ = 1100000220973 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100000221141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3216374745 + ... + 3216375086.

It is an arithmetic number, because the mean of its divisors is an integer number (139376246360).

Almost surely, 2^{1100000221101} is an apocalyptic number.

It is an amenable number.

1100000221101 is a deficient number, since it is larger than the sum of its proper divisors (572514735219).

1100000221101 is a wasteful number, since it uses less digits than its factorization.

1100000221101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6432749856 (or 6432749853 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 1100000221101 its reverse (1011220000011), we get a palindrome (2111220221112).

The spelling of 1100000221101 in words is "one trillion, one hundred billion, two hundred twenty-one thousand, one hundred one".