22520222425 has 12 divisors (see below), whose sum is σ = 27932337216. Its totient is φ = 18011493200.

The previous prime is 22520222419. The next prime is 22520222437. The reversal of 22520222425 is 52422202522.

It is a happy number.

It is not a de Polignac number, because 22520222425 - 2⁵ = 22520222393 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22520222393 and 22520222402.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17389 + ... + 212938.

It is an arithmetic number, because the mean of its divisors is an integer number (2327694768).

Almost surely, 2^22520222425 is an apocalyptic number.

22520222425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22520222425 is a deficient number, since it is larger than the sum of its proper divisors (5412114791).

22520222425 is a wasteful number, since it uses less digits than its factorization.

22520222425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234248 (or 234243 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 28.

Adding to 22520222425 its reverse (52422202522), we get a palindrome (74942424947).

The spelling of 22520222425 in words is "twenty-two billion, five hundred twenty million, two hundred twenty-two thousand, four hundred twenty-five".