1220612 has 12 divisors (see below), whose sum is σ = 2148300. Its totient is φ = 606816.

The previous prime is 1220599. The next prime is 1220623. The reversal of 1220612 is 2160221.

It can be written as a sum of positive squares in 2 ways, for example, as 891136 + 329476 = 944^2 + 574^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14 + ... + 1562.

It is an arithmetic number, because the mean of its divisors is an integer number (179025).

2^1220612 is an apocalyptic number.

It is an amenable number.

1220612 is a deficient number, since it is larger than the sum of its proper divisors (927688).

1220612 is a wasteful number, since it uses less digits than its factorization.

1220612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1750 (or 1748 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1220612 is about 1104.8131063669. The cubic root of 1220612 is about 106.8708372465.

Adding to 1220612 its reverse (2160221), we get a palindrome (3380833).

The spelling of 1220612 in words is "one million, two hundred twenty thousand, six hundred twelve".