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12212222201201 = 1110158718725893
BaseRepresentation
bin1011000110110110000100…
…1010101000110101110001
31121020110212202120221101102
42301231201022220311301
53100041112340414301
641550114544214145
72400206151655121
oct261554112506561
947213782527342
1012212222201201
1139891a1073730
12145298860a355
136a77b8c01b79
14303108ddcc81
15162a043a7b6b
hexb1b612a8d71

12212222201201 has 16 divisors (see below), whose sum is σ = 13477250622528. Its totient is φ = 10973372712000.

The previous prime is 12212222201173. The next prime is 12212222201269. The reversal of 12212222201201 is 10210222221221.

It is a cyclic number.

It is not a de Polignac number, because 12212222201201 - 210 = 12212222200177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12212222201401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8710790 + ... + 10015103.

It is an arithmetic number, because the mean of its divisors is an integer number (842328163908).

Almost surely, 212212222201201 is an apocalyptic number.

12212222201201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12212222201201 is a deficient number, since it is larger than the sum of its proper divisors (1265028421327).

12212222201201 is a wasteful number, since it uses less digits than its factorization.

12212222201201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18726592.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 12212222201201 its reverse (10210222221221), we get a palindrome (22422444422422).

The spelling of 12212222201201 in words is "twelve trillion, two hundred twelve billion, two hundred twenty-two million, two hundred one thousand, two hundred one".

Divisors: 1 11 101 587 1111 6457 59287 652157 18725893 205984823 1891315193 10992099191 20804467123 120913091101 1110202018291 12212222201201