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20110211111202 = 2381136901111997
BaseRepresentation
bin1001001001010010001011…
…11111010101100100100010
32122012111222012010001011020
410210221011333111210202
510113441203021024302
6110434300424430310
74143625531014612
oct444510577254442
978174865101136
1020110211111202
11645376899a113
1223095b1018396
13b2b5004584c4
144d74a74b6a42
1524d1a577eebc
hex124a45fd5922

20110211111202 has 32 divisors (see below), whose sum is σ = 40271466709824. Its totient is φ = 6694896888000.

The previous prime is 20110211111131. The next prime is 20110211111219. The reversal of 20110211111202 is 20211111201102.

It is a happy number.

It is a super-2 number, since 2×201102111112022 (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179504268 + ... + 179616264.

It is an arithmetic number, because the mean of its divisors is an integer number (1258483334682).

Almost surely, 220110211111202 is an apocalyptic number.

20110211111202 is an abundant number, since it is smaller than the sum of its proper divisors (20161255598622).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20110211111202 is a wasteful number, since it uses less digits than its factorization.

20110211111202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149714.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 20110211111202 its reverse (20211111201102), we get a palindrome (40321322312304).

The spelling of 20110211111202 in words is "twenty trillion, one hundred ten billion, two hundred eleven million, one hundred eleven thousand, two hundred two".

Divisors: 1 2 3 6 811 1622 2433 4866 36901 73802 110703 111997 221406 223994 335991 671982 29926711 59853422 89780133 90829567 179560266 181659134 272488701 544977402 4132801297 8265602594 12398403891 24796807782 3351701851867 6703403703734 10055105555601 20110211111202