1212028 has 6 divisors (see below), whose sum is σ = 2121056. Its totient is φ = 606012.

The previous prime is 1212023. The next prime is 1212047. The reversal of 1212028 is 8202121.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 151500 + ... + 151507.

2^1212028 is an apocalyptic number.

It is an amenable number.

1212028 is a deficient number, since it is larger than the sum of its proper divisors (909028).

1212028 is a wasteful number, since it uses less digits than its factorization.

1212028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303011 (or 303009 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 1212028 is about 1100.9214322557. The cubic root of 1212028 is about 106.6197232671.

Adding to 1212028 its reverse (8202121), we get a palindrome (9414149).

The spelling of 1212028 in words is "one million, two hundred twelve thousand, twenty-eight".