22134420321421 has 4 divisors (see below), whose sum is σ = 22135678048000. Its totient is φ = 22133162594844.

The previous prime is 22134420321407. The next prime is 22134420321449. The reversal of 22134420321421 is 12412302443122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22134420321421 - 2¹⁷ = 22134420190349 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 (22134420321401) 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, 628836891 + ... + 628872088.

It is an arithmetic number, because the mean of its divisors is an integer number (5533919512000).

Almost surely, 2^{22134420321421} is an apocalyptic number.

It is an amenable number.

22134420321421 is a deficient number, since it is larger than the sum of its proper divisors (1257726579).

22134420321421 is a wasteful number, since it uses less digits than its factorization.

22134420321421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1257726578.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 22134420321421 its reverse (12412302443122), we get a palindrome (34546722764543).

The spelling of 22134420321421 in words is "twenty-two trillion, one hundred thirty-four billion, four hundred twenty million, three hundred twenty-one thousand, four hundred twenty-one".