1222012 has 12 divisors (see below), whose sum is σ = 2333016. Its totient is φ = 555440.

The previous prime is 1222003. The next prime is 1222019. The reversal of 1222012 is 2102221.

It is a self number, because there is not a number n which added to its sum of digits gives 1222012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222019) 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 3 ways as a sum of consecutive naturals, for example, 13843 + ... + 13930.

It is an arithmetic number, because the mean of its divisors is an integer number (194418).

2^1222012 is an apocalyptic number.

It is an amenable number.

1222012 is a deficient number, since it is larger than the sum of its proper divisors (1111004).

1222012 is a wasteful number, since it uses less digits than its factorization.

1222012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27788 (or 27786 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 1222012 is about 1105.4465161192. The cubic root of 1222012 is about 106.9116806939.

Adding to 1222012 its reverse (2102221), we get a palindrome (3324233).

The spelling of 1222012 in words is "one million, two hundred twenty-two thousand, twelve".