1212320212 has 12 divisors (see below), whose sum is σ = 2122189216. Its totient is φ = 605980440.

The previous prime is 1212320183. The next prime is 1212320227. The reversal of 1212320212 is 2120232121.

It is a happy number.

It is a super-3 number, since 3×1212320212³ (a number of 28 digits) contains 333 as substring.

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 3 ways as a sum of consecutive naturals, for example, 29118 + ... + 57205.

Almost surely, 2^1212320212 is an apocalyptic number.

It is an amenable number.

1212320212 is a deficient number, since it is larger than the sum of its proper divisors (909869004).

1212320212 is a wasteful number, since it uses less digits than its factorization.

1212320212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89838 (or 89836 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1212320212 is about 34818.3889920255. The cubic root of 1212320212 is about 1066.2829101723.

Adding to 1212320212 its reverse (2120232121), we get a palindrome (3332552333).

The spelling of 1212320212 in words is "one billion, two hundred twelve million, three hundred twenty thousand, two hundred twelve".