1212303224 has 64 divisors (see below), whose sum is σ = 2560896000. Its totient is φ = 533174400.

The previous prime is 1212303221. The next prime is 1212303247. The reversal of 1212303224 is 4223032121.

It is a junction number, because it is equal to n+sod(n) for n = 1212303196 and 1212303205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212303221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 647009 + ... + 648879.

It is an arithmetic number, because the mean of its divisors is an integer number (40014000).

Almost surely, 2^1212303224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1212303224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1280448000).

1212303224 is an abundant number, since it is smaller than the sum of its proper divisors (1348592776).

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

1212303224 is a wasteful number, since it uses less digits than its factorization.

1212303224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2124 (or 2120 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1212303224 is about 34818.1450396198. The cubic root of 1212303224 is about 1066.2779296129.

Adding to 1212303224 its reverse (4223032121), we get a palindrome (5435335345).

The spelling of 1212303224 in words is "one billion, two hundred twelve million, three hundred three thousand, two hundred twenty-four".