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11212233313220 = 2255448371028953
BaseRepresentation
bin1010001100101000110100…
…1011110000101111000100
31110200212201211002001201122
42203022031023300233010
52432200123212010340
635502455012013112
72235025410446462
oct243121513605704
943625654061648
1011212233313220
113633099448425
12131100a301198
136344030270b4
142aa964249832
151469c8ad8db5
hexa328d2f0bc4

11212233313220 has 24 divisors (see below), whose sum is σ = 23545756056984. Its totient is φ = 4484880734976.

The previous prime is 11212233313217. The next prime is 11212233313271. The reversal of 11212233313220 is 2231333221211.

It can be written as a sum of positive squares in 4 ways, for example, as 94756846276 + 11117476466944 = 307826^2 + 3334288^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11212233313220.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10382264 + ... + 11411216.

It is an arithmetic number, because the mean of its divisors is an integer number (981073169041).

Almost surely, 211212233313220 is an apocalyptic number.

11212233313220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11212233313220 is an abundant number, since it is smaller than the sum of its proper divisors (12333522743764).

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

11212233313220 is a wasteful number, since it uses less digits than its factorization.

11212233313220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1573799 (or 1573797 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 11212233313220 its reverse (2231333221211), we get a palindrome (13443566534431).

The spelling of 11212233313220 in words is "eleven trillion, two hundred twelve billion, two hundred thirty-three million, three hundred thirteen thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 544837 1028953 1089674 2057906 2179348 2724185 4115812 5144765 5448370 10289530 10896740 20579060 560611665661 1121223331322 2242446662644 2803058328305 5606116656610 11212233313220