1100450221 has 8 divisors (see below), whose sum is σ = 1185374624. Its totient is φ = 1015565040.

The previous prime is 1100450179. The next prime is 1100450231. The reversal of 1100450221 is 1220540011.

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 1100450221 - 2⁷ = 1100450093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1100450195 and 1100450204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100450231) 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, 76966 + ... + 90136.

It is an arithmetic number, because the mean of its divisors is an integer number (148171828).

Almost surely, 2^1100450221 is an apocalyptic number.

It is an amenable number.

1100450221 is a deficient number, since it is larger than the sum of its proper divisors (84924403).

1100450221 is a wasteful number, since it uses less digits than its factorization.

1100450221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19611.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 1100450221 is about 33173.0345461491. The cubic root of 1100450221 is about 1032.4209308484.

Adding to 1100450221 its reverse (1220540011), we get a palindrome (2320990232).

The spelling of 1100450221 in words is "one billion, one hundred million, four hundred fifty thousand, two hundred twenty-one".