20522204225 has 12 divisors (see below), whose sum is σ = 25490035200. Its totient is φ = 16390342800.

The previous prime is 20522204191. The next prime is 20522204231. The reversal of 20522204225 is 52240222502.

It is not a de Polignac number, because 20522204225 - 2⁶ = 20522204161 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20522204194 and 20522204203.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 670241 + ... + 700190.

It is an arithmetic number, because the mean of its divisors is an integer number (2124169600).

Almost surely, 2^20522204225 is an apocalyptic number.

20522204225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20522204225 is a deficient number, since it is larger than the sum of its proper divisors (4967830975).

20522204225 is a wasteful number, since it uses less digits than its factorization.

20522204225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1371040 (or 1371035 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 26.

Adding to 20522204225 its reverse (52240222502), we get a palindrome (72762426727).

The spelling of 20522204225 in words is "twenty billion, five hundred twenty-two million, two hundred four thousand, two hundred twenty-five".