42223232225 has 24 divisors (see below), whose sum is σ = 54182157120. Its totient is φ = 32601800000.

The previous prime is 42223232159. The next prime is 42223232251. The reversal of 42223232225 is 52223232224.

42223232225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42223232225 - 2⁸ = 42223231969 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2304350 + ... + 2322600.

It is an arithmetic number, because the mean of its divisors is an integer number (2257589880).

Almost surely, 2^42223232225 is an apocalyptic number.

It is an amenable number.

42223232225 is a deficient number, since it is larger than the sum of its proper divisors (11958924895).

42223232225 is a wasteful number, since it uses less digits than its factorization.

42223232225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21481 (or 21476 counting only the distinct ones).

The product of its digits is 23040, while the sum is 29.

Adding to 42223232225 its reverse (52223232224), we get a palindrome (94446464449).

Subtracting 42223232225 from its reverse (52223232224), we obtain a palindrome (9999999999).

The spelling of 42223232225 in words is "forty-two billion, two hundred twenty-three million, two hundred thirty-two thousand, two hundred twenty-five".