1100110101221 has 8 divisors (see below), whose sum is σ = 1119522919200. Its totient is φ = 1080722846160.

The previous prime is 1100110101091. The next prime is 1100110101229. The reversal of 1100110101221 is 1221010110011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1100110101221 - 2²⁶ = 1100042992357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100110101229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6303890 + ... + 6476051.

It is an arithmetic number, because the mean of its divisors is an integer number (139940364900).

Almost surely, 2^{1100110101221} is an apocalyptic number.

It is an amenable number.

1100110101221 is a deficient number, since it is larger than the sum of its proper divisors (19412817979).

1100110101221 is a wasteful number, since it uses less digits than its factorization.

1100110101221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12781459.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 1100110101221 its reverse (1221010110011), we get a palindrome (2321120211232).

The spelling of 1100110101221 in words is "one trillion, one hundred billion, one hundred ten million, one hundred one thousand, two hundred twenty-one".