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20110122233201 = 7111320090032201
BaseRepresentation
bin1001001001010010000001…
…01100010010110101110001
32122012111201222212120110102
410210221000230102311301
510113441012242430301
6110434243531442145
74143623401404230
oct444510054226561
978174658776412
1020110122233201
116453722804820
1223095872b6355
13b2b4b7c0a180
144d749977cb17
1524d19ca75b6b
hex124a40b12d71

20110122233201 has 16 divisors (see below), whose sum is σ = 27001003279488. Its totient is φ = 14464823184000.

The previous prime is 20110122233119. The next prime is 20110122233263. The reversal of 20110122233201 is 10233222101102.

It is not a de Polignac number, because 20110122233201 - 218 = 20110121971057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20110122233281) 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, 10045015100 + ... + 10045017101.

It is an arithmetic number, because the mean of its divisors is an integer number (1687562704968).

Almost surely, 220110122233201 is an apocalyptic number.

It is an amenable number.

20110122233201 is a deficient number, since it is larger than the sum of its proper divisors (6890881046287).

20110122233201 is a wasteful number, since it uses less digits than its factorization.

20110122233201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20090032232.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 20110122233201 its reverse (10233222101102), we get a palindrome (30343344334303).

The spelling of 20110122233201 in words is "twenty trillion, one hundred ten billion, one hundred twenty-two million, two hundred thirty-three thousand, two hundred one".

Divisors: 1 7 11 13 77 91 143 1001 20090032201 140630225407 220990354211 261170418613 1546932479477 1828192930291 2872874604743 20110122233201