20420422424422 has 16 divisors (see below), whose sum is σ = 31347335967552. Its totient is φ = 9971376526440.

The previous prime is 20420422424407. The next prime is 20420422424429. The reversal of 20420422424422 is 22442422402402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20420422424429) 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 7 ways as a sum of consecutive naturals, for example, 15901104 + ... + 17137267.

It is an arithmetic number, because the mean of its divisors is an integer number (1959208497972).

Almost surely, 2^{20420422424422} is an apocalyptic number.

20420422424422 is a deficient number, since it is larger than the sum of its proper divisors (10926913543130).

20420422424422 is a wasteful number, since it uses less digits than its factorization.

20420422424422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33045603.

The product of its (nonzero) digits is 131072, while the sum is 34.

Adding to 20420422424422 its reverse (22442422402402), we get a palindrome (42862844826824).

The spelling of 20420422424422 in words is "twenty trillion, four hundred twenty billion, four hundred twenty-two million, four hundred twenty-four thousand, four hundred twenty-two".