20422400422401 has 96 divisors (see below), whose sum is σ = 31483841326080. Its totient is φ = 12737560252032.

The previous prime is 20422400422313. The next prime is 20422400422423. The reversal of 20422400422401 is 10422400422402.

It is not a de Polignac number, because 20422400422401 - 2⁹ = 20422400421889 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20422400422201) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1710556090 + ... + 1710568028.

It is an arithmetic number, because the mean of its divisors is an integer number (327956680480).

Almost surely, 2^{20422400422401} is an apocalyptic number.

It is an amenable number.

20422400422401 is a deficient number, since it is larger than the sum of its proper divisors (11061440903679).

20422400422401 is a wasteful number, since it uses less digits than its factorization.

20422400422401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13875 (or 13872 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 27.

Adding to 20422400422401 its reverse (10422400422402), we get a palindrome (30844800844803).

Subtracting from 20422400422401 its reverse (10422400422402), we obtain a palindrome (9999999999999).

The spelling of 20422400422401 in words is "twenty trillion, four hundred twenty-two billion, four hundred million, four hundred twenty-two thousand, four hundred one".