1212303012 has 12 divisors (see below), whose sum is σ = 2828707056. Its totient is φ = 404101000.

The previous prime is 1212302983. The next prime is 1212303013. The reversal of 1212303012 is 2103032121.

It is a tau number, because it is divible by the number of its divisors (12).

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

It is a junction number, because it is equal to n+sod(n) for n = 1212302982 and 1212303000.

It is not an unprimeable number, because it can be changed into a prime (1212303013) 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, 50512614 + ... + 50512637.

It is an arithmetic number, because the mean of its divisors is an integer number (235725588).

Almost surely, 2^1212303012 is an apocalyptic number.

1212303012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1212303012 is an abundant number, since it is smaller than the sum of its proper divisors (1616404044).

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

1212303012 is a wasteful number, since it uses less digits than its factorization.

1212303012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101025258 (or 101025256 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1212303012 is about 34818.1419952300. The cubic root of 1212303012 is about 1066.2778674582.

Adding to 1212303012 its reverse (2103032121), we get a palindrome (3315335133).

The spelling of 1212303012 in words is "one billion, two hundred twelve million, three hundred three thousand, twelve".