1213210223000 has 128 divisors (see below), whose sum is σ = 2851685853120. Its totient is φ = 483104793600.

The previous prime is 1213210222937. The next prime is 1213210223003. The reversal of 1213210223000 is 3220123121.

It is a self number, because there is not a number n which added to its sum of digits gives 1213210223000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213210223003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 296408954 + ... + 296413046.

Almost surely, 2^{1213210223000} is an apocalyptic number.

1213210223000 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 1213210223000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1425842926560).

1213210223000 is an abundant number, since it is smaller than the sum of its proper divisors (1638475630120).

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

1213210223000 is a wasteful number, since it uses less digits than its factorization.

1213210223000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5374 (or 5360 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 1213210223000 its reverse (3220123121), we get a palindrome (1216430346121).

The spelling of 1213210223000 in words is "one trillion, two hundred thirteen billion, two hundred ten million, two hundred twenty-three thousand".