1212303200 has 72 divisors (see below), whose sum is σ = 2967700680. Its totient is φ = 483584000.

The previous prime is 1212303199. The next prime is 1212303221. The reversal of 1212303200 is 23032121.

It is a happy number.

1212303200 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 318911 + ... + 322689.

It is an arithmetic number, because the mean of its divisors is an integer number (41218065).

Almost surely, 2^1212303200 is an apocalyptic number.

1212303200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1212303200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1483850340).

1212303200 is an abundant number, since it is smaller than the sum of its proper divisors (1755397480).

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

1212303200 is a wasteful number, since it uses less digits than its factorization.

1212303200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4200 (or 4187 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1212303200 is about 34818.1446949719. The cubic root of 1212303200 is about 1066.2779225765.

Adding to 1212303200 its reverse (23032121), we get a palindrome (1235335321).

The spelling of 1212303200 in words is "one billion, two hundred twelve million, three hundred three thousand, two hundred".