21422430214001 has 4 divisors (see below), whose sum is σ = 21715888162212. Its totient is φ = 21128972265792.

The previous prime is 21422430213983. The next prime is 21422430214033. The reversal of 21422430214001 is 10041203422412.

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 14635368384400 + 6787061829601 = 3825620^2 + 2605199^2 .

It is a cyclic number.

It is not a de Polignac number, because 21422430214001 - 2¹⁰ = 21422430212977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21422430214201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146728973996 + ... + 146728974141.

It is an arithmetic number, because the mean of its divisors is an integer number (5428972040553).

Almost surely, 2^{21422430214001} is an apocalyptic number.

It is an amenable number.

21422430214001 is a deficient number, since it is larger than the sum of its proper divisors (293457948211).

21422430214001 is an equidigital number, since it uses as much as digits as its factorization.

21422430214001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293457948210.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 21422430214001 its reverse (10041203422412), we get a palindrome (31463633636413).

The spelling of 21422430214001 in words is "twenty-one trillion, four hundred twenty-two billion, four hundred thirty million, two hundred fourteen thousand, one".