22315420225 has 48 divisors (see below), whose sum is σ = 32414496768. Its totient is φ = 14921951040.

The previous prime is 22315420177. The next prime is 22315420247. The reversal of 22315420225 is 52202451322.

It is not a de Polignac number, because 22315420225 - 2¹⁷ = 22315289153 is a prime.

It is a super-3 number, since 3×22315420225³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22315420193 and 22315420202.

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 47 ways as a sum of consecutive naturals, for example, 2322882 + ... + 2332468.

It is an arithmetic number, because the mean of its divisors is an integer number (675302016).

Almost surely, 2^22315420225 is an apocalyptic number.

22315420225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22315420225 is a deficient number, since it is larger than the sum of its proper divisors (10099076543).

22315420225 is a wasteful number, since it uses less digits than its factorization.

22315420225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9934 (or 9929 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

Adding to 22315420225 its reverse (52202451322), we get a palindrome (74517871547).

The spelling of 22315420225 in words is "twenty-two billion, three hundred fifteen million, four hundred twenty thousand, two hundred twenty-five".