1344135032221 has 4 divisors (see below), whose sum is σ = 1344177309852. Its totient is φ = 1344092754592.

The previous prime is 1344135032167. The next prime is 1344135032231. The reversal of 1344135032221 is 1222305314431.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1106464156996 + 237670875225 = 1051886^2 + 487515^2 .

It is a cyclic number.

It is not a de Polignac number, because 1344135032221 - 2¹⁷ = 1344134901149 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 (1344135032231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21091090 + ... + 21154723.

It is an arithmetic number, because the mean of its divisors is an integer number (336044327463).

Almost surely, 2^{1344135032221} is an apocalyptic number.

It is an amenable number.

1344135032221 is a deficient number, since it is larger than the sum of its proper divisors (42277631).

1344135032221 is an equidigital number, since it uses as much as digits as its factorization.

1344135032221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42277630.

The product of its (nonzero) digits is 17280, while the sum is 31.

The spelling of 1344135032221 in words is "one trillion, three hundred forty-four billion, one hundred thirty-five million, thirty-two thousand, two hundred twenty-one".