20424420022244 has 24 divisors (see below), whose sum is σ = 40848936334080. Its totient is φ = 8753302233216.

The previous prime is 20424420022219. The next prime is 20424420022301. The reversal of 20424420022244 is 44222002442402.

It is a self number, because there is not a number n which added to its sum of digits gives 20424420022244.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20837237 + ... + 21795395.

It is an arithmetic number, because the mean of its divisors is an integer number (1702039013920).

Almost surely, 2^{20424420022244} is an apocalyptic number.

It is an amenable number.

20424420022244 is an abundant number, since it is smaller than the sum of its proper divisors (20424516311836).

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

20424420022244 is a wasteful number, since it uses less digits than its factorization.

20424420022244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1719467 (or 1719465 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 32.

Adding to 20424420022244 its reverse (44222002442402), we get a palindrome (64646422464646).

The spelling of 20424420022244 in words is "twenty trillion, four hundred twenty-four billion, four hundred twenty million, twenty-two thousand, two hundred forty-four".