22225025636 has 24 divisors (see below), whose sum is σ = 43464466080. Its totient is φ = 9855886400.

The previous prime is 22225025617. The next prime is 22225025639. The reversal of 22225025636 is 63652052222.

It is a junction number, because it is equal to n+sod(n) for n = 22225025596 and 22225025605.

It is not an unprimeable number, because it can be changed into a prime (22225025639) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 6158126 + ... + 6161733.

It is an arithmetic number, because the mean of its divisors is an integer number (1811019420).

Almost surely, 2^22225025636 is an apocalyptic number.

It is an amenable number.

22225025636 is a deficient number, since it is larger than the sum of its proper divisors (21239440444).

22225025636 is a wasteful number, since it uses less digits than its factorization.

22225025636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12319915 (or 12319913 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 35.

Adding to 22225025636 its reverse (63652052222), we get a palindrome (85877077858).

The spelling of 22225025636 in words is "twenty-two billion, two hundred twenty-five million, twenty-five thousand, six hundred thirty-six".