1322401222543 has 8 divisors (see below), whose sum is σ = 1365276169856. Its totient is φ = 1279539828000.

The previous prime is 1322401222531. The next prime is 1322401222547. The reversal of 1322401222543 is 3452221042231.

It is a happy number.

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 1322401222543 - 2²⁹ = 1321864351631 is a prime.

It is a super-2 number, since 2×1322401222543² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1322401222547) 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, 3189696 + ... + 3580357.

It is an arithmetic number, because the mean of its divisors is an integer number (170659521232).

Almost surely, 2^{1322401222543} is an apocalyptic number.

1322401222543 is a deficient number, since it is larger than the sum of its proper divisors (42874947313).

1322401222543 is an equidigital number, since it uses as much as digits as its factorization.

1322401222543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6776385.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 1322401222543 its reverse (3452221042231), we get a palindrome (4774622264774).

The spelling of 1322401222543 in words is "one trillion, three hundred twenty-two billion, four hundred one million, two hundred twenty-two thousand, five hundred forty-three".