1103221213 has 8 divisors (see below), whose sum is σ = 1110883680. Its totient is φ = 1095575760.

The previous prime is 1103221199. The next prime is 1103221237. The reversal of 1103221213 is 3121223011.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1103221213 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 (1103221313) 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, 143206 + ... + 150712.

It is an arithmetic number, because the mean of its divisors is an integer number (138860460).

Almost surely, 2^1103221213 is an apocalyptic number.

It is an amenable number.

1103221213 is a deficient number, since it is larger than the sum of its proper divisors (7662467).

1103221213 is an equidigital number, since it uses as much as digits as its factorization.

1103221213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8507.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1103221213 is about 33214.7740169943. The cubic root of 1103221213 is about 1033.2867680601.

Adding to 1103221213 its reverse (3121223011), we get a palindrome (4224444224).

The spelling of 1103221213 in words is "one billion, one hundred three million, two hundred twenty-one thousand, two hundred thirteen".