1221113030303 has 8 divisors (see below), whose sum is σ = 1274666739840. Its totient is φ = 1168444506240.

The previous prime is 1221113030287. The next prime is 1221113030311. The reversal of 1221113030303 is 3030303111221.

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 1221113030303 - 2⁴ = 1221113030287 is a prime.

It is a super-2 number, since 2×1221113030303² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1221113030353) 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, 221293550 + ... + 221299067.

It is an arithmetic number, because the mean of its divisors is an integer number (159333342480).

Almost surely, 2^{1221113030303} is an apocalyptic number.

1221113030303 is a deficient number, since it is larger than the sum of its proper divisors (53553709537).

1221113030303 is an equidigital number, since it uses as much as digits as its factorization.

1221113030303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442592737.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 1221113030303 its reverse (3030303111221), we get a palindrome (4251416141524).

The spelling of 1221113030303 in words is "one trillion, two hundred twenty-one billion, one hundred thirteen million, thirty thousand, three hundred three".