1212303112 has 16 divisors (see below), whose sum is σ = 2346393600. Its totient is φ = 586598160.

The previous prime is 1212303109. The next prime is 1212303119. The reversal of 1212303112 is 2113032121.

It is not an unprimeable number, because it can be changed into a prime (1212303119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2443912 + ... + 2444407.

It is an arithmetic number, because the mean of its divisors is an integer number (146649600).

Almost surely, 2^1212303112 is an apocalyptic number.

It is an amenable number.

1212303112 is a deficient number, since it is larger than the sum of its proper divisors (1134090488).

1212303112 is a wasteful number, since it uses less digits than its factorization.

1212303112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4888356 (or 4888352 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1212303112 is about 34818.1434312630. The cubic root of 1212303112 is about 1066.2778967764.

Adding to 1212303112 its reverse (2113032121), we get a palindrome (3325335233).

The spelling of 1212303112 in words is "one billion, two hundred twelve million, three hundred three thousand, one hundred twelve".