1100430241221 has 12 divisors (see below), whose sum is σ = 1503899515616. Its totient is φ = 715726982880.

The previous prime is 1100430241217. The next prime is 1100430241319. The reversal of 1100430241221 is 1221420340011.

It is not a de Polignac number, because 1100430241221 - 2² = 1100430241217 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 (1100430241201) 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 11 ways as a sum of consecutive naturals, for example, 109099681 + ... + 109109766.

Almost surely, 2^{1100430241221} is an apocalyptic number.

It is an amenable number.

1100430241221 is a deficient number, since it is larger than the sum of its proper divisors (403469274395).

1100430241221 is an equidigital number, since it uses as much as digits as its factorization.

1100430241221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218209532 (or 218209491 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 1100430241221 its reverse (1221420340011), we get a palindrome (2321850581232).

The spelling of 1100430241221 in words is "one trillion, one hundred billion, four hundred thirty million, two hundred forty-one thousand, two hundred twenty-one".