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11212011102220 = 2254113673184271
BaseRepresentation
bin1010001100100111111111…
…1100000110000000001100
31110200212011022221120112121
42203021333330012000030
52432144144320232340
635502420553142324
72235020041624135
oct243117774060014
943625138846477
1011212011102220
113632a94a74a75
121310b679ba9a4
13634398c941b6
142aa942924c8c
151469b434394a
hexa327ff0600c

11212011102220 has 24 divisors (see below), whose sum is σ = 24119497055808. Its totient is φ = 4375418966400.

The previous prime is 11212011102169. The next prime is 11212011102319. The reversal of 11212011102220 is 2220111021211.

It is a junction number, because it is equal to n+sod(n) for n = 11212011102194 and 11212011102203.

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, 6836591316 + ... + 6836592955.

It is an arithmetic number, because the mean of its divisors is an integer number (1004979043992).

Almost surely, 211212011102220 is an apocalyptic number.

11212011102220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11212011102220 is an abundant number, since it is smaller than the sum of its proper divisors (12907485953588).

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

11212011102220 is a wasteful number, since it uses less digits than its factorization.

11212011102220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13673184321 (or 13673184319 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 11212011102220 its reverse (2220111021211), we get a palindrome (13432122123431).

The spelling of 11212011102220 in words is "eleven trillion, two hundred twelve billion, eleven million, one hundred two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 41 82 164 205 410 820 13673184271 27346368542 54692737084 68365921355 136731842710 273463685420 560600555111 1121201110222 2242402220444 2803002775555 5606005551110 11212011102220