1102231121221 has 4 divisors (see below), whose sum is σ = 1150154213472. Its totient is φ = 1054308028972.

The previous prime is 1102231121207. The next prime is 1102231121273. The reversal of 1102231121221 is 1221211322011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1102231121221 - 2⁷ = 1102231121093 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 (1102231121291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23961546091 + ... + 23961546136.

It is an arithmetic number, because the mean of its divisors is an integer number (287538553368).

Almost surely, 2^{1102231121221} is an apocalyptic number.

It is an amenable number.

1102231121221 is a deficient number, since it is larger than the sum of its proper divisors (47923092251).

1102231121221 is an equidigital number, since it uses as much as digits as its factorization.

1102231121221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47923092250.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 1102231121221 its reverse (1221211322011), we get a palindrome (2323442443232).

The spelling of 1102231121221 in words is "one trillion, one hundred two billion, two hundred thirty-one million, one hundred twenty-one thousand, two hundred twenty-one".