21322120423301 has 4 divisors (see below), whose sum is σ = 21533230526604. Its totient is φ = 21111010320000.

The previous prime is 21322120423271. The next prime is 21322120423309. The reversal of 21322120423301 is 10332402122312.

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 17695567692100 + 3626552731201 = 4206610^2 + 1904351^2 .

It is a cyclic number.

It is not a de Polignac number, because 21322120423301 - 2³⁰ = 21321046681477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21322120423309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105555051500 + ... + 105555051701.

It is an arithmetic number, because the mean of its divisors is an integer number (5383307631651).

Almost surely, 2^{21322120423301} is an apocalyptic number.

It is an amenable number.

21322120423301 is a deficient number, since it is larger than the sum of its proper divisors (211110103303).

21322120423301 is a wasteful number, since it uses less digits than its factorization.

21322120423301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211110103302.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 21322120423301 its reverse (10332402122312), we get a palindrome (31654522545613).

The spelling of 21322120423301 in words is "twenty-one trillion, three hundred twenty-two billion, one hundred twenty million, four hundred twenty-three thousand, three hundred one".