Search a number
-
+
12211200201222 = 2321161672728289
BaseRepresentation
bin1011000110110010010001…
…0000000001001000000110
31121020101020112111221222100
42301230210100001020012
53100032014222414342
641545425315212530
72400141632055261
oct261544420011006
947211215457870
1012211200201222
113988817193a50
1214527422a7146
136a7685261159
1430304d3a5cd8
151629947cce4c
hexb1b24401206

12211200201222 has 24 divisors (see below), whose sum is σ = 28862836839720. Its totient is φ = 3700363697280.

The previous prime is 12211200201199. The next prime is 12211200201251. The reversal of 12211200201222 is 22210200211221.

It is a happy number.

12211200201222 is a `hidden beast` number, since 1 + 221 + 1 + 20 + 0 + 201 + 222 = 666.

It is a super-2 number, since 2×122112002012222 (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12211200201195 and 12211200201204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30836363947 + ... + 30836364342.

It is an arithmetic number, because the mean of its divisors is an integer number (1202618201655).

Almost surely, 212211200201222 is an apocalyptic number.

12211200201222 is an abundant number, since it is smaller than the sum of its proper divisors (16651636638498).

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

12211200201222 is a wasteful number, since it uses less digits than its factorization.

12211200201222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61672728308 (or 61672728305 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 12211200201222 its reverse (22210200211221), we get a palindrome (34421400412443).

Subtracting 12211200201222 from its reverse (22210200211221), we obtain a palindrome (9999000009999).

The spelling of 12211200201222 in words is "twelve trillion, two hundred eleven billion, two hundred million, two hundred one thousand, two hundred twenty-two".

Divisors: 1 2 3 6 9 11 18 22 33 66 99 198 61672728289 123345456578 185018184867 370036369734 555054554601 678400011179 1110109109202 1356800022358 2035200033537 4070400067074 6105600100611 12211200201222