1100120880221 has 36 divisors (see below), whose sum is σ = 1278905443200. Its totient is φ = 945476524080.

The previous prime is 1100120880211. The next prime is 1100120880241. The reversal of 1100120880221 is 1220880210011.

It is not a de Polignac number, because 1100120880221 - 2³⁴ = 1082941011037 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100120880211) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 20896910 + ... + 20949488.

It is an arithmetic number, because the mean of its divisors is an integer number (35525151200).

Almost surely, 2^{1100120880221} is an apocalyptic number.

1100120880221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1100120880221 is a deficient number, since it is larger than the sum of its proper divisors (178784562979).

1100120880221 is a wasteful number, since it uses less digits than its factorization.

1100120880221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53118 (or 53088 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 26.

The spelling of 1100120880221 in words is "one trillion, one hundred billion, one hundred twenty million, eight hundred eighty thousand, two hundred twenty-one".