225622243226 has 4 divisors (see below), whose sum is σ = 338433364842. Its totient is φ = 112811121612.

The previous prime is 225622243211. The next prime is 225622243229. The reversal of 225622243226 is 622342226522.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 219961938001 + 5660305225 = 469001^2 + 75235^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 225622243226.

It is not an unprimeable number, because it can be changed into a prime (225622243229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56405560805 + ... + 56405560808.

Almost surely, 2^225622243226 is an apocalyptic number.

225622243226 is a deficient number, since it is larger than the sum of its proper divisors (112811121616).

225622243226 is a wasteful number, since it uses less digits than its factorization.

225622243226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112811121615.

The product of its digits is 276480, while the sum is 38.

Adding to 225622243226 its reverse (622342226522), we get a palindrome (847964469748).

The spelling of 225622243226 in words is "two hundred twenty-five billion, six hundred twenty-two million, two hundred forty-three thousand, two hundred twenty-six".