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12011111220332 = 227428968257869
BaseRepresentation
bin1010111011001000111000…
…0001001000010001101100
31120112020202222210120122102
42232302032001020101230
53033242223433022312
641313454530034232
72346526350561620
oct256621601102154
946466688716572
1012011111220332
11391097a178124
12141ba00a18978
13691848688b83
142d74ab561180
1515c68362dec2
hexaec8e04846c

12011111220332 has 12 divisors (see below), whose sum is σ = 24022222440720. Its totient is φ = 5147619094416.

The previous prime is 12011111220299. The next prime is 12011111220359. The reversal of 12011111220332 is 23302211111021.

12011111220332 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 214484128907 + ... + 214484128962.

It is an arithmetic number, because the mean of its divisors is an integer number (2001851870060).

Almost surely, 212011111220332 is an apocalyptic number.

It is an amenable number.

12011111220332 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12011111220332 is a wasteful number, since it uses less digits than its factorization.

12011111220332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428968257880 (or 428968257878 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 12011111220332 its reverse (23302211111021), we get a palindrome (35313322331353).

The spelling of 12011111220332 in words is "twelve trillion, eleven billion, one hundred eleven million, two hundred twenty thousand, three hundred thirty-two".

Divisors: 1 2 4 7 14 28 428968257869 857936515738 1715873031476 3002777805083 6005555610166 12011111220332