1212324012 has 18 divisors (see below), whose sum is σ = 3064485788. Its totient is φ = 404107992.

The previous prime is 1212324007. The next prime is 1212324023. The reversal of 1212324012 is 2104232121.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×1212324012² = 2939459020143552288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 5 ways as a sum of consecutive naturals, for example, 16837798 + ... + 16837869.

Almost surely, 2^1212324012 is an apocalyptic number.

1212324012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1212324012 is an abundant number, since it is smaller than the sum of its proper divisors (1852161776).

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

1212324012 is a wasteful number, since it uses less digits than its factorization.

1212324012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33675677 (or 33675672 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1212324012 is about 34818.4435608486. The cubic root of 1212324012 is about 1066.2840242539.

Adding to 1212324012 its reverse (2104232121), we get a palindrome (3316556133).

The spelling of 1212324012 in words is "one billion, two hundred twelve million, three hundred twenty-four thousand, twelve".