1223213313300 has 144 divisors (see below), whose sum is σ = 3863167366464. Its totient is φ = 296362880000.

The previous prime is 1223213313239. The next prime is 1223213313307. The reversal of 1223213313300 is 33133123221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223213313307) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5571610 + ... + 5786990.

It is an arithmetic number, because the mean of its divisors is an integer number (26827551156).

Almost surely, 2^{1223213313300} is an apocalyptic number.

1223213313300 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 1223213313300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1931583683232).

1223213313300 is an abundant number, since it is smaller than the sum of its proper divisors (2639954053164).

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

1223213313300 is a wasteful number, since it uses less digits than its factorization.

1223213313300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217130 (or 217123 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 1223213313300 its reverse (33133123221), we get a palindrome (1256346436521).

The spelling of 1223213313300 in words is "one trillion, two hundred twenty-three billion, two hundred thirteen million, three hundred thirteen thousand, three hundred".