1214321212 has 48 divisors (see below), whose sum is σ = 2368909312. Its totient is φ = 540872640.

The previous prime is 1214321209. The next prime is 1214321267. The reversal of 1214321212 is 2121234121.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 1214321212.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 745543 + ... + 747169.

Almost surely, 2^1214321212 is an apocalyptic number.

It is an amenable number.

1214321212 is a deficient number, since it is larger than the sum of its proper divisors (1154588100).

1214321212 is a wasteful number, since it uses less digits than its factorization.

1214321212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2138 (or 2136 counting only the distinct ones).

The product of its digits is 192, while the sum is 19.

The square root of 1214321212 is about 34847.1119606776. Note that the first 3 decimals coincide. The cubic root of 1214321212 is about 1066.8692402155.

Adding to 1214321212 its reverse (2121234121), we get a palindrome (3335555333).

The spelling of 1214321212 in words is "one billion, two hundred fourteen million, three hundred twenty-one thousand, two hundred twelve".