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12212200201200 = 24352233101942863
BaseRepresentation
bin1011000110110101111111…
…0110101101101111110000
31121020110211020012020001120
42301231133312231233300
53100041041222414300
641550112440502240
72400205463656146
oct261553766555760
947213736166046
1012212200201200
11398918a70780a
12145298117a980
136a77b449b30c
14303106113596
15162a024ae3a0
hexb1b5fdadbf0

12212200201200 has 240 divisors, whose sum is σ = 39327116474880. Its totient is φ = 3239352227840.

The previous prime is 12212200201199. The next prime is 12212200201207. The reversal of 12212200201200 is 210200221221.

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 (15).

It is a self number, because there is not a number n which added to its sum of digits gives 12212200201200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212200201207) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 284890969 + ... + 284933831.

It is an arithmetic number, because the mean of its divisors is an integer number (163862985312).

Almost surely, 212212200201200 is an apocalyptic number.

12212200201200 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 12212200201200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19663558237440).

12212200201200 is an abundant number, since it is smaller than the sum of its proper divisors (27114916273680).

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

12212200201200 is a wasteful number, since it uses less digits than its factorization.

12212200201200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44136 (or 44125 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 12212200201200 its reverse (210200221221), we get a palindrome (12422400422421).

The spelling of 12212200201200 in words is "twelve trillion, two hundred twelve billion, two hundred million, two hundred one thousand, two hundred".