1222221103 has 8 divisors (see below), whose sum is σ = 1294544160. Its totient is φ = 1149945600.

The previous prime is 1222221083. The next prime is 1222221109. The reversal of 1222221103 is 3011222221.

It is a happy number.

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 1222221103 - 2⁹ = 1222220591 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 (1222221109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50403 + ... + 70603.

It is an arithmetic number, because the mean of its divisors is an integer number (161818020).

Almost surely, 2^1222221103 is an apocalyptic number.

1222221103 is a deficient number, since it is larger than the sum of its proper divisors (72323057).

1222221103 is a wasteful number, since it uses less digits than its factorization.

1222221103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23777.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1222221103 is about 34960.2789319536. The cubic root of 1222221103 is about 1069.1777836400.

Adding to 1222221103 its reverse (3011222221), we get a palindrome (4233443324).

The spelling of 1222221103 in words is "one billion, two hundred twenty-two million, two hundred twenty-one thousand, one hundred three".