1213322203320 has 64 divisors (see below), whose sum is σ = 3640954112640. Its totient is φ = 323464809600.

The previous prime is 1213322203319. The next prime is 1213322203367. The reversal of 1213322203320 is 233022233121.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

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, 926766 + ... + 1812605.

It is an arithmetic number, because the mean of its divisors is an integer number (56889908010).

Almost surely, 2^{1213322203320} is an apocalyptic number.

1213322203320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1213322203320 is an abundant number, since it is smaller than the sum of its proper divisors (2427631909320).

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

1213322203320 is a wasteful number, since it uses less digits than its factorization.

1213322203320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2743076 (or 2743072 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 1213322203320 its reverse (233022233121), we get a palindrome (1446344436441).

The spelling of 1213322203320 in words is "one trillion, two hundred thirteen billion, three hundred twenty-two million, two hundred three thousand, three hundred twenty".