20502210522124 has 24 divisors (see below), whose sum is σ = 36328425512400. Its totient is φ = 10123264823616.

The previous prime is 20502210522089. The next prime is 20502210522163. The reversal of 20502210522124 is 42122501220502.

It is a junction number, because it is equal to n+sod(n) for n = 20502210522092 and 20502210522101.

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, 75420099 + ... + 75691450.

It is an arithmetic number, because the mean of its divisors is an integer number (1513684396350).

Almost surely, 2^{20502210522124} is an apocalyptic number.

It is an amenable number.

20502210522124 is a deficient number, since it is larger than the sum of its proper divisors (15826214990276).

20502210522124 is a wasteful number, since it uses less digits than its factorization.

20502210522124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151111977 (or 151111975 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 28.

Adding to 20502210522124 its reverse (42122501220502), we get a palindrome (62624711742626).

The spelling of 20502210522124 in words is "twenty trillion, five hundred two billion, two hundred ten million, five hundred twenty-two thousand, one hundred twenty-four".