1111221101321 has 8 divisors (see below), whose sum is σ = 1161294615360. Its totient is φ = 1061294216752.

The previous prime is 1111221101233. The next prime is 1111221101369. The reversal of 1111221101321 is 1231011221111.

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-1111221101321 is a prime.

It is a super-2 number, since 2×1111221101321² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1111221101321.

It is not an unprimeable number, because it can be changed into a prime (1111221101381) 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, 36641870 + ... + 36672183.

It is an arithmetic number, because the mean of its divisors is an integer number (145161826920).

Almost surely, 2^{1111221101321} is an apocalyptic number.

It is an amenable number.

1111221101321 is a deficient number, since it is larger than the sum of its proper divisors (50073514039).

1111221101321 is an equidigital number, since it uses as much as digits as its factorization.

1111221101321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73314735.

The product of its (nonzero) digits is 24, while the sum is 17.

Adding to 1111221101321 its reverse (1231011221111), we get a palindrome (2342232322432).

The spelling of 1111221101321 in words is "one trillion, one hundred eleven billion, two hundred twenty-one million, one hundred one thousand, three hundred twenty-one".