1222522 has 8 divisors (see below), whose sum is σ = 2095776. Its totient is φ = 523932.

The previous prime is 1222513. The next prime is 1222523. The reversal of 1222522 is 2252221.

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

It is an Ulam number.

It is a nialpdrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 1222496 and 1222505.

It is not an unprimeable number, because it can be changed into a prime (1222523) 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, 43648 + ... + 43675.

It is an arithmetic number, because the mean of its divisors is an integer number (261972).

2^1222522 is an apocalyptic number.

1222522 is a deficient number, since it is larger than the sum of its proper divisors (873254).

1222522 is an equidigital number, since it uses as much as digits as its factorization.

1222522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87332.

The product of its digits is 160, while the sum is 16.

The square root of 1222522 is about 1105.6771680739. The cubic root of 1222522 is about 106.9265516263.

Adding to 1222522 its reverse (2252221), we get a palindrome (3474743).

The spelling of 1222522 in words is "one million, two hundred twenty-two thousand, five hundred twenty-two".