1212003212 has 12 divisors (see below), whose sum is σ = 2424006480. Its totient is φ = 519429936.

The previous prime is 1212003181. The next prime is 1212003229. The reversal of 1212003212 is 2123002121.

It is a happy number.

1212003212 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (14).

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, 21642887 + ... + 21642942.

It is an arithmetic number, because the mean of its divisors is an integer number (202000540).

Almost surely, 2^1212003212 is an apocalyptic number.

It is an amenable number.

1212003212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1212003212 is a wasteful number, since it uses less digits than its factorization.

1212003212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43285840 (or 43285838 counting only the distinct ones).

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

The square root of 1212003212 is about 34813.8365021725. The cubic root of 1212003212 is about 1066.1899641160.

Adding to 1212003212 its reverse (2123002121), we get a palindrome (3335005333).

The spelling of 1212003212 in words is "one billion, two hundred twelve million, three thousand, two hundred twelve".