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12222212101210 = 252574755724553
BaseRepresentation
bin1011000111011011010010…
…0111000101010001011010
31121021102122222100102221001
42301312310213011101122
53100222042244214320
641554450130335214
72401011544503046
oct261666447052132
947242588312831
1012222212101210
11399245810a441
1214548b612a50a
136a871b7940c7
143037b5a93026
15162ddb41d20a
hexb1db49c545a

12222212101210 has 16 divisors (see below), whose sum is σ = 22085584828776. Its totient is φ = 4869861941248.

The previous prime is 12222212101163. The next prime is 12222212101217. The reversal of 12222212101210 is 1210121222221.

12222212101210 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 10986221815209 + 1235990286001 = 3314547^2 + 1111751^2 .

It is not an unprimeable number, because it can be changed into a prime (12222212101217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2377859707 + ... + 2377864846.

Almost surely, 212222212101210 is an apocalyptic number.

12222212101210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12222212101210 is a deficient number, since it is larger than the sum of its proper divisors (9863372727566).

12222212101210 is a wasteful number, since it uses less digits than its factorization.

12222212101210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4755724817.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12222212101210 its reverse (1210121222221), we get a palindrome (13432333323431).

The spelling of 12222212101210 in words is "twelve trillion, two hundred twenty-two billion, two hundred twelve million, one hundred one thousand, two hundred ten".

Divisors: 1 2 5 10 257 514 1285 2570 4755724553 9511449106 23778622765 47557245530 1222221210121 2444442420242 6111106050605 12222212101210