1105341221 has 4 divisors (see below), whose sum is σ = 1106007552. Its totient is φ = 1104674892.

The previous prime is 1105341197. The next prime is 1105341233. The reversal of 1105341221 is 1221435011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1105341221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1105341193 and 1105341202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1105341271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 330671 + ... + 333996.

It is an arithmetic number, because the mean of its divisors is an integer number (276501888).

Almost surely, 2^1105341221 is an apocalyptic number.

It is an amenable number.

1105341221 is a deficient number, since it is larger than the sum of its proper divisors (666331).

1105341221 is an equidigital number, since it uses as much as digits as its factorization.

1105341221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666330.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 1105341221 is about 33246.6723297235. The cubic root of 1105341221 is about 1033.9482173111.

Adding to 1105341221 its reverse (1221435011), we get a palindrome (2326776232).

The spelling of 1105341221 in words is "one billion, one hundred five million, three hundred forty-one thousand, two hundred twenty-one".