1212333210320 has 80 divisors (see below), whose sum is σ = 2824088902992. Its totient is φ = 484002631680.

The previous prime is 1212333210289. The next prime is 1212333210373. The reversal of 1212333210320 is 230123332121.

It can be written as a sum of positive squares in 8 ways, for example, as 369440289856 + 842892920464 = 607816^2 + 918092^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120111194 + ... + 120121286.

Almost surely, 2^{1212333210320} is an apocalyptic number.

1212333210320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1212333210320 is an abundant number, since it is smaller than the sum of its proper divisors (1611755692672).

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

1212333210320 is a wasteful number, since it uses less digits than its factorization.

1212333210320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12840 (or 12834 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 1212333210320 its reverse (230123332121), we get a palindrome (1442456542441).

The spelling of 1212333210320 in words is "one trillion, two hundred twelve billion, three hundred thirty-three million, two hundred ten thousand, three hundred twenty".