1213322000000 has 448 divisors, whose sum is σ = 3329141761440. Its totient is φ = 436800000000.

The previous prime is 1213321999997. The next prime is 1213322000003. The reversal of 1213322000000 is 2233121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1213321999997) and next prime (1213322000003).

It is not an unprimeable number, because it can be changed into a prime (1213322000003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 2881999790 + ... + 2882000210.

Almost surely, 2^{1213322000000} is an apocalyptic number.

1213322000000 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 1213322000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1664570880720).

1213322000000 is an abundant number, since it is smaller than the sum of its proper divisors (2115819761440).

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

1213322000000 is an frugal number, since it uses more digits than its factorization.

1213322000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607 (or 570 counting only the distinct ones).

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

Adding to 1213322000000 its reverse (2233121), we get a palindrome (1213324233121).

The spelling of 1213322000000 in words is "one trillion, two hundred thirteen billion, three hundred twenty-two million", and thus it is an aban number.