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11111212102202 = 219328481890159
BaseRepresentation
bin1010000110110000011111…
…0110011011001000111010
31110100012222110211211022122
42201230013312123020322
52424021230244232302
635344230444521242
72224521123355412
oct241540766331072
943305873754278
1011111212102202
1135a4269621383
1212b5516550222
13627a23a91aa4
142a5add719642
15144064dcd3a2
hexa1b07d9b23a

11111212102202 has 16 divisors (see below), whose sum is σ = 17544092227200. Its totient is φ = 5263183797120.

The previous prime is 11111212102189. The next prime is 11111212102217. The reversal of 11111212102202 is 20220121211111.

11111212102202 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 12037199 + ... + 12927357.

It is an arithmetic number, because the mean of its divisors is an integer number (1096505764200).

Almost surely, 211111212102202 is an apocalyptic number.

11111212102202 is a deficient number, since it is larger than the sum of its proper divisors (6432880124998).

11111212102202 is a wasteful number, since it uses less digits than its factorization.

11111212102202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1218661.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 11111212102202 its reverse (20220121211111), we get a palindrome (31331333313313).

The spelling of 11111212102202 in words is "eleven trillion, one hundred eleven billion, two hundred twelve million, one hundred two thousand, two hundred two".

Divisors: 1 2 19 38 328481 656962 890159 1780318 6241139 12482278 16913021 33826042 292400318479 584800636958 5555606051101 11111212102202