20216642032422 has 192 divisors, whose sum is σ = 49792023350784. Its totient is φ = 5873890245120.

The previous prime is 20216642032409. The next prime is 20216642032423. The reversal of 20216642032422 is 22423024661202.

20216642032422 is a `hidden beast` number, since 2 + 0 + 2 + 1 + 6 + 642 + 0 + 3 + 2 + 4 + 2 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20216642032423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 634789303 + ... + 634821149.

It is an arithmetic number, because the mean of its divisors is an integer number (259333454952).

Almost surely, 2^{20216642032422} is an apocalyptic number.

20216642032422 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 20216642032422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24896011675392).

20216642032422 is an abundant number, since it is smaller than the sum of its proper divisors (29575381318362).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20216642032422 is a wasteful number, since it uses less digits than its factorization.

20216642032422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33163 (or 33160 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 36.

Adding to 20216642032422 its reverse (22423024661202), we get a palindrome (42639666693624).

The spelling of 20216642032422 in words is "twenty trillion, two hundred sixteen billion, six hundred forty-two million, thirty-two thousand, four hundred twenty-two".