1225522 has 8 divisors (see below), whose sum is σ = 1845036. Its totient is φ = 610512.

The previous prime is 1225517. The next prime is 1225529. The reversal of 1225522 is 2255221.

It can be written as a sum of positive squares in 2 ways, for example, as 1185921 + 39601 = 1089^2 + 199^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 1225522.

It is not an unprimeable number, because it can be changed into a prime (1225529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 333 + ... + 1600.

2^1225522 is an apocalyptic number.

1225522 is a deficient number, since it is larger than the sum of its proper divisors (619514).

1225522 is a wasteful number, since it uses less digits than its factorization.

1225522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2252.

The product of its digits is 400, while the sum is 19.

The square root of 1225522 is about 1107.0329715054. The cubic root of 1225522 is about 107.0139440878.

The spelling of 1225522 in words is "one million, two hundred twenty-five thousand, five hundred twenty-two".