21422444304033 has 12 divisors (see below), whose sum is σ = 30943873262848. Its totient is φ = 14281471412280.

The previous prime is 21422444304031. The next prime is 21422444304059. The reversal of 21422444304033 is 33040344422412.

21422444304033 is a `hidden beast` number, since 2 + 1 + 4 + 2 + 244 + 4 + 3 + 0 + 403 + 3 = 666.

It is not a de Polignac number, because 21422444304033 - 2¹ = 21422444304031 is a prime.

It is a super-2 number, since 2×21422444304033² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21422444304031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12315985 + ... + 13947342.

Almost surely, 2^{21422444304033} is an apocalyptic number.

It is an amenable number.

21422444304033 is a deficient number, since it is larger than the sum of its proper divisors (9521428958815).

21422444304033 is a wasteful number, since it uses less digits than its factorization.

21422444304033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26353964 (or 26353961 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 36.

Adding to 21422444304033 its reverse (33040344422412), we get a palindrome (54462788726445).

The spelling of 21422444304033 in words is "twenty-one trillion, four hundred twenty-two billion, four hundred forty-four million, three hundred four thousand, thirty-three".