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22001101212101 = 1163129091089629
BaseRepresentation
bin1010000000010100001111…
…10100101000100111000101
32212220021200120102201122012
411000022013310220213011
510340431223402241401
6114443055533544005
74430345540461604
oct500120764504705
985807616381565
1022001101212101
117012684080870
122573b64345005
13c37905a316ab
14560c05083a3b
152824748888bb
hex140287d289c5

22001101212101 has 16 divisors (see below), whose sum is σ = 24047523907200. Its totient is φ = 19962420811200.

The previous prime is 22001101212073. The next prime is 22001101212121. The reversal of 22001101212101 is 10121210110022.

It is a cyclic number.

It is not a de Polignac number, because 22001101212101 - 230 = 22000027470277 is a prime.

It is a super-2 number, since 2×220011012121012 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22001101212121) 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, 19646555 + ... + 20736183.

It is an arithmetic number, because the mean of its divisors is an integer number (1502970244200).

Almost surely, 222001101212101 is an apocalyptic number.

It is an amenable number.

22001101212101 is a deficient number, since it is larger than the sum of its proper divisors (2046422695099).

22001101212101 is a wasteful number, since it uses less digits than its factorization.

22001101212101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1093180.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 22001101212101 its reverse (10121210110022), we get a palindrome (32122311322123).

The spelling of 22001101212101 in words is "twenty-two trillion, one billion, one hundred one million, two hundred twelve thousand, one hundred one".

Divisors: 1 11 631 2909 6941 31999 1089629 1835579 11985919 20191369 687555899 3169730761 7563114889 34867038371 2000100110191 22001101212101