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2111111110102 = 21961409904681
BaseRepresentation
bin11110101110001000000…
…001110001110111010110
321110211010222000001212011
4132232020001301313112
5234042023421010402
64253455301414434
7305344205233411
oct36561001616726
97424128001764
102111111110102
11744354204405
122a1192a0a41a
13124100001b77
147426d464b78
1539dac902ed7
hex1eb88071dd6

2111111110102 has 16 divisors (see below), whose sum is σ = 3333391297200. Its totient is φ = 999982609920.

The previous prime is 2111111110091. The next prime is 2111111110103. The reversal of 2111111110102 is 2010111111112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111111110103) 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, 1881202 + ... + 2785882.

It is an arithmetic number, because the mean of its divisors is an integer number (208336956075).

Almost surely, 22111111110102 is an apocalyptic number.

2111111110102 is a deficient number, since it is larger than the sum of its proper divisors (1222280187098).

2111111110102 is a wasteful number, since it uses less digits than its factorization.

2111111110102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 966111.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 2111111110102 its reverse (2010111111112), we get a palindrome (4121222221214).

The spelling of 2111111110102 in words is "two trillion, one hundred eleven billion, one hundred eleven million, one hundred ten thousand, one hundred two".

Divisors: 1 2 19 38 61409 122818 904681 1166771 1809362 2333542 17188939 34377878 55555555529 111111111058 1055555555051 2111111110102