2123221323000 has 128 divisors (see below), whose sum is σ = 6630042481920. Its totient is φ = 565714409600.

The previous prime is 2123221322993. The next prime is 2123221323061. The reversal of 2123221323000 is 3231223212.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3262879 + ... + 3859121.

It is an arithmetic number, because the mean of its divisors is an integer number (51797206890).

Almost surely, 2^{2123221323000} is an apocalyptic number.

2123221323000 is a gapful number since it is divisible by the number (20) 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 2123221323000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3315021240960).

2123221323000 is an abundant number, since it is smaller than the sum of its proper divisors (4506821158920).

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

2123221323000 is a wasteful number, since it uses less digits than its factorization.

2123221323000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597454 (or 597440 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 2123221323000 its reverse (3231223212), we get a palindrome (2126452546212).

The spelling of 2123221323000 in words is "two trillion, one hundred twenty-three billion, two hundred twenty-one million, three hundred twenty-three thousand".