1321041222401 has 8 divisors (see below), whose sum is σ = 1378832346240. Its totient is φ = 1263279644352.

The previous prime is 1321041222367. The next prime is 1321041222421. The reversal of 1321041222401 is 1042221401231.

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 1321041222401 - 2⁶ = 1321041222337 is a prime.

It is a super-2 number, since 2×1321041222401² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1321041222421) 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 7 ways as a sum of consecutive naturals, for example, 7295045 + ... + 7473938.

It is an arithmetic number, because the mean of its divisors is an integer number (172354043280).

Almost surely, 2^{1321041222401} is an apocalyptic number.

It is an amenable number.

1321041222401 is a deficient number, since it is larger than the sum of its proper divisors (57791123839).

1321041222401 is a wasteful number, since it uses less digits than its factorization.

1321041222401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14772895.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 1321041222401 its reverse (1042221401231), we get a palindrome (2363262623632).

The spelling of 1321041222401 in words is "one trillion, three hundred twenty-one billion, forty-one million, two hundred twenty-two thousand, four hundred one".