225212522 has 8 divisors (see below), whose sum is σ = 338371716. Its totient is φ = 112421952.

The previous prime is 225212501. The next prime is 225212531.

225212522 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 132687361 + 92525161 = 11519^2 + 9619^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90623 + ... + 93074.

Almost surely, 2^225212522 is an apocalyptic number.

225212522 is a deficient number, since it is larger than the sum of its proper divisors (113159194).

225212522 is a wasteful number, since it uses less digits than its factorization.

225212522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184312.

The product of its digits is 1600, while the sum is 23.

The square root of 225212522 is about 15007.0823946562. The cubic root of 225212522 is about 608.4116358497.

The spelling of 225212522 in words is "two hundred twenty-five million, two hundred twelve thousand, five hundred twenty-two".