22223155225 has 48 divisors (see below), whose sum is σ = 30211923456. Its totient is φ = 16142976000.

The previous prime is 22223155219. The next prime is 22223155309. The reversal of 22223155225 is 52255132222.

It is a happy number.

It is not a de Polignac number, because 22223155225 - 2¹¹ = 22223153177 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4569295 + ... + 4574155.

It is an arithmetic number, because the mean of its divisors is an integer number (629415072).

Almost surely, 2^22223155225 is an apocalyptic number.

22223155225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22223155225 is a deficient number, since it is larger than the sum of its proper divisors (7988768231).

22223155225 is a wasteful number, since it uses less digits than its factorization.

22223155225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5266 (or 5261 counting only the distinct ones).

The product of its digits is 24000, while the sum is 31.

Adding to 22223155225 its reverse (52255132222), we get a palindrome (74478287447).

The spelling of 22223155225 in words is "twenty-two billion, two hundred twenty-three million, one hundred fifty-five thousand, two hundred twenty-five".