1220002333312 has 128 divisors (see below), whose sum is σ = 2942336292480. Its totient is φ = 491891097600.

The previous prime is 1220002333289. The next prime is 1220002333331. The reversal of 1220002333312 is 2133332000221.

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38383987 + ... + 38415757.

It is an arithmetic number, because the mean of its divisors is an integer number (22987002285).

Almost surely, 2^{1220002333312} 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 1220002333312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1471168146240).

1220002333312 is an abundant number, since it is smaller than the sum of its proper divisors (1722333959168).

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

1220002333312 is a wasteful number, since it uses less digits than its factorization.

1220002333312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34330 (or 34318 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 1220002333312 its reverse (2133332000221), we get a palindrome (3353334333533).

The spelling of 1220002333312 in words is "one trillion, two hundred twenty billion, two million, three hundred thirty-three thousand, three hundred twelve".