1220522 has 8 divisors (see below), whose sum is σ = 1927200.
Its totient is φ = 578124.
The previous prime is 1220507. The next prime is 1220591. The reversal of 1220522 is 2250221.
Adding to 1220522 its reverse (2250221), we get a palindrome (3470743).
It is a sphenic number, since it is the product of 3 distinct primes.
It is a junction number, because it is equal to n+sod(n) for n = 1220497 and 1220506.
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, 16022 + ... + 16097.
It is an arithmetic number, because the mean of its divisors is an integer number (240900).
21220522 is an apocalyptic number.
1220522 is a deficient number, since it is larger than the sum of its proper divisors (706678).
1220522 is a wasteful number, since it uses less digits than its factorization.
1220522 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 32140.
The product of its (nonzero) digits is 80, while the sum is 14.
The square root of 1220522 is about 1104.7723747451.
The cubic root of 1220522 is about 106.8682105282.
The spelling of 1220522 in words is "one million, two hundred twenty thousand, five hundred twenty-two".