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12213012300000 = 2535567760133
BaseRepresentation
bin1011000110111001000001…
…0000101000000011100000
31121020112220211022010011220
42301232100100220003200
53100044222122100000
641550325210535040
72400234554463141
oct261562020500340
947215824263156
1012213012300000
113989567061646
121452b69137480
136a78b37c9155
14303181d0bac8
15162a4d9261a0
hexb1b904280e0

12213012300000 has 288 divisors, whose sum is σ = 40131238873824. Its totient is φ = 3251938560000.

The previous prime is 12213012299933. The next prime is 12213012300031. The reversal of 12213012300000 is 321031221.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 203069934 + ... + 203130066.

It is an arithmetic number, because the mean of its divisors is an integer number (139344579423).

Almost surely, 212213012300000 is an apocalyptic number.

12213012300000 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 12213012300000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20065619436912).

12213012300000 is an abundant number, since it is smaller than the sum of its proper divisors (27918226573824).

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

12213012300000 is an frugal number, since it uses more digits than its factorization.

12213012300000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60848 (or 60820 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 12213012300000 its reverse (321031221), we get a palindrome (12213333331221).

The spelling of 12213012300000 in words is "twelve trillion, two hundred thirteen billion, twelve million, three hundred thousand".