20201022225 has 72 divisors (see below), whose sum is σ = 38371106592. Its totient is φ = 10124121600.

The previous prime is 20201022203. The next prime is 20201022271. The reversal of 20201022225 is 52222010202.

It is not a de Polignac number, because 20201022225 - 2⁹ = 20201021713 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20201022198 and 20201022207.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2639254 + ... + 2646896.

It is an arithmetic number, because the mean of its divisors is an integer number (532932036).

Almost surely, 2^20201022225 is an apocalyptic number.

20201022225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20201022225 is a deficient number, since it is larger than the sum of its proper divisors (18170084367).

20201022225 is a wasteful number, since it uses less digits than its factorization.

20201022225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8367 (or 8359 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

Adding to 20201022225 its reverse (52222010202), we get a palindrome (72423032427).

The spelling of 20201022225 in words is "twenty billion, two hundred one million, twenty-two thousand, two hundred twenty-five".