1331102412221 has 8 divisors (see below), whose sum is σ = 1374098565888. Its totient is φ = 1288109844000.

The previous prime is 1331102412173. The next prime is 1331102412223. The reversal of 1331102412221 is 1222142011331.

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 1331102412221 - 2²⁶ = 1331035303357 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 (1331102412223) 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, 131495 + ... + 1636916.

It is an arithmetic number, because the mean of its divisors is an integer number (171762320736).

Almost surely, 2^{1331102412221} is an apocalyptic number.

It is an amenable number.

1331102412221 is a deficient number, since it is larger than the sum of its proper divisors (42996153667).

1331102412221 is a wasteful number, since it uses less digits than its factorization.

1331102412221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1792723.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 1331102412221 its reverse (1222142011331), we get a palindrome (2553244423552).

The spelling of 1331102412221 in words is "one trillion, three hundred thirty-one billion, one hundred two million, four hundred twelve thousand, two hundred twenty-one".