1212302012 has 12 divisors (see below), whose sum is σ = 2126364240. Its totient is φ = 604769376.

The previous prime is 1212301999. The next prime is 1212302017. The reversal of 1212302012 is 2102032121.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212302017) 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, 343433 + ... + 346944.

It is an arithmetic number, because the mean of its divisors is an integer number (177197020).

Almost surely, 2^1212302012 is an apocalyptic number.

It is an amenable number.

1212302012 is a deficient number, since it is larger than the sum of its proper divisors (914062228).

1212302012 is a wasteful number, since it uses less digits than its factorization.

1212302012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690820 (or 690818 counting only the distinct ones).

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

The square root of 1212302012 is about 34818.1276348973. The cubic root of 1212302012 is about 1066.2775742757.

Adding to 1212302012 its reverse (2102032121), we get a palindrome (3314334133).

The spelling of 1212302012 in words is "one billion, two hundred twelve million, three hundred two thousand, twelve".