1212066 has 36 divisors (see below), whose sum is σ = 2801682. Its totient is φ = 378624.

The previous prime is 1212061. The next prime is 1212103. The reversal of 1212066 is 6602121.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 1134225 + 77841 = 1065^2 + 279^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1212061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5086 + ... + 5318.

2^1212066 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1212066, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1400841).

1212066 is an abundant number, since it is smaller than the sum of its proper divisors (1589616).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1212066 is a wasteful number, since it uses less digits than its factorization.

1212066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275 (or 255 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1212066 is about 1100.9386903911. The cubic root of 1212066 is about 106.6208375173.

Adding to 1212066 its reverse (6602121), we get a palindrome (7814187).

It can be divided in two parts, 121 and 2066, that added together give a 7-th power (2187 = 3⁷).

The spelling of 1212066 in words is "one million, two hundred twelve thousand, sixty-six".