13221923401 has 8 divisors (see below), whose sum is σ = 13391371520. Its totient is φ = 13052527488.

The previous prime is 13221923381. The next prime is 13221923411. The reversal of 13221923401 is 10432912231.

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 13221923401 - 2¹¹ = 13221921353 is a prime.

It is a super-2 number, since 2×13221923401² (a number of 21 digits) contains 22 as substring.

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 13221923401.

It is not an unprimeable number, because it can be changed into a prime (13221923411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 910540 + ... + 924946.

It is an arithmetic number, because the mean of its divisors is an integer number (1673921440).

Almost surely, 2^13221923401 is an apocalyptic number.

It is an amenable number.

13221923401 is a deficient number, since it is larger than the sum of its proper divisors (169448119).

13221923401 is a wasteful number, since it uses less digits than its factorization.

13221923401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26103.

The product of its (nonzero) digits is 2592, while the sum is 28.

The spelling of 13221923401 in words is "thirteen billion, two hundred twenty-one million, nine hundred twenty-three thousand, four hundred one".