10020422505 has 16 divisors (see below), whose sum is σ = 16048131840. Its totient is φ = 5339073408.

The previous prime is 10020422501. The next prime is 10020422507. The reversal of 10020422505 is 50522402001.

It is a happy number.

It is not a de Polignac number, because 10020422505 - 2² = 10020422501 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10020422501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 305892 + ... + 337061.

It is an arithmetic number, because the mean of its divisors is an integer number (1003008240).

Almost surely, 2^10020422505 is an apocalyptic number.

10020422505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10020422505 is a deficient number, since it is larger than the sum of its proper divisors (6027709335).

10020422505 is a wasteful number, since it uses less digits than its factorization.

10020422505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644000.

The product of its (nonzero) digits is 800, while the sum is 21.

Adding to 10020422505 its reverse (50522402001), we get a palindrome (60542824506).

The spelling of 10020422505 in words is "ten billion, twenty million, four hundred twenty-two thousand, five hundred five".