1223130213020 has 192 divisors, whose sum is σ = 2812058726400. Its totient is φ = 445060915200.

The previous prime is 1223130212999. The next prime is 1223130213031. The reversal of 1223130213020 is 203120313221.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1223130212983 and 1223130213001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 751769447 + ... + 751771073.

It is an arithmetic number, because the mean of its divisors is an integer number (14646139200).

Almost surely, 2^{1223130213020} is an apocalyptic number.

1223130213020 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 1223130213020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1406029363200).

1223130213020 is an abundant number, since it is smaller than the sum of its proper divisors (1588928513380).

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

1223130213020 is a wasteful number, since it uses less digits than its factorization.

1223130213020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2164 (or 2162 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 1223130213020 its reverse (203120313221), we get a palindrome (1426250526241).

The spelling of 1223130213020 in words is "one trillion, two hundred twenty-three billion, one hundred thirty million, two hundred thirteen thousand, twenty".