1106244221 has 4 divisors (see below), whose sum is σ = 1107706332. Its totient is φ = 1104782112.

The previous prime is 1106244193. The next prime is 1106244229. The reversal of 1106244221 is 1224426011.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 234518596 + 871725625 = 15314^2 + 29525^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1106244221 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 (1106244229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 729920 + ... + 731433.

It is an arithmetic number, because the mean of its divisors is an integer number (276926583).

Almost surely, 2^1106244221 is an apocalyptic number.

It is an amenable number.

1106244221 is a deficient number, since it is larger than the sum of its proper divisors (1462111).

1106244221 is an equidigital number, since it uses as much as digits as its factorization.

1106244221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1462110.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 1106244221 is about 33260.2498637638. The cubic root of 1106244221 is about 1034.2296993519.

The spelling of 1106244221 in words is "one billion, one hundred six million, two hundred forty-four thousand, two hundred twenty-one".