1324213222501 has 4 divisors (see below), whose sum is σ = 1426075778092. Its totient is φ = 1222350666912.

The previous prime is 1324213222499. The next prime is 1324213222547. The reversal of 1324213222501 is 1052223124231.

It is a happy number.

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 744786260100 + 579426962401 = 863010^2 + 761201^2 .

It is a cyclic number.

It is not a de Polignac number, because 1324213222501 - 2¹ = 1324213222499 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1324213222501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1324213222201) 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 3 ways as a sum of consecutive naturals, for example, 50931277776 + ... + 50931277801.

It is an arithmetic number, because the mean of its divisors is an integer number (356518944523).

Almost surely, 2^{1324213222501} is an apocalyptic number.

It is an amenable number.

1324213222501 is a deficient number, since it is larger than the sum of its proper divisors (101862555591).

1324213222501 is a wasteful number, since it uses less digits than its factorization.

1324213222501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101862555590.

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 1324213222501 its reverse (1052223124231), we get a palindrome (2376436346732).

The spelling of 1324213222501 in words is "one trillion, three hundred twenty-four billion, two hundred thirteen million, two hundred twenty-two thousand, five hundred one".