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13221223201200 = 24352712203128981
BaseRepresentation
bin1100000001100100111001…
…0011111111100110110000
31201210221021202222112121210
43000121032103333212300
53213104031114414300
644041425053320120
72533126143651510
oct300311623774660
951727252875553
1013221223201200
1142380a89030a3
121596440a96040
1374b9a9c0abc1
14339ca6a3b840
1517ddaae47050
hexc064e4ff9b0

13221223201200 has 240 divisors, whose sum is σ = 48406610278656. Its totient is φ = 3021722803200.

The previous prime is 13221223201181. The next prime is 13221223201237. The reversal of 13221223201200 is 210232212231.

13221223201200 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (21).

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, 102440710 + ... + 102569690.

Almost surely, 213221223201200 is an apocalyptic number.

13221223201200 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 13221223201200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24203305139328).

13221223201200 is an abundant number, since it is smaller than the sum of its proper divisors (35185387077456).

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

13221223201200 is a wasteful number, since it uses less digits than its factorization.

13221223201200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141212 (or 141201 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 13221223201200 its reverse (210232212231), we get a palindrome (13431455413431).

The spelling of 13221223201200 in words is "thirteen trillion, two hundred twenty-one billion, two hundred twenty-three million, two hundred one thousand, two hundred".