1314442421221 has 8 divisors (see below), whose sum is σ = 1316371660920. Its totient is φ = 1312513774272.

The previous prime is 1314442421189. The next prime is 1314442421233. The reversal of 1314442421221 is 1221242444131.

It can be written as a sum of positive squares in 4 ways, for example, as 82664300196 + 1231778121025 = 287514^2 + 1109855^2 .

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 1314442421221 - 2⁵ = 1314442421189 is a prime.

It is a super-2 number, since 2×1314442421221² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1314442421261) 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, 4391871 + ... + 4681603.

It is an arithmetic number, because the mean of its divisors is an integer number (164546457615).

Almost surely, 2^{1314442421221} is an apocalyptic number.

It is an amenable number.

1314442421221 is a deficient number, since it is larger than the sum of its proper divisors (1929239699).

1314442421221 is an equidigital number, since it uses as much as digits as its factorization.

1314442421221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296375.

The product of its digits is 12288, while the sum is 31.

Adding to 1314442421221 its reverse (1221242444131), we get a palindrome (2535684865352).

The spelling of 1314442421221 in words is "one trillion, three hundred fourteen billion, four hundred forty-two million, four hundred twenty-one thousand, two hundred twenty-one".