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2102223101223 = 371923283809453
BaseRepresentation
bin11110100101110110010…
…000101101110100100111
321102222012112122102210010
4132211312100231310213
5233420323103214343
64245425320501303
7304611022346160
oct36456620556447
97388175572703
102102223101223
11740603154823
1229b51231a833
1312331480330b
1473a68c82767
1539a3c498d33
hex1e97642dd27

2102223101223 has 64 divisors (see below), whose sum is σ = 3531032616960. Its totient is φ = 1084717484928.

The previous prime is 2102223101141. The next prime is 2102223101227. The reversal of 2102223101223 is 3221013222012.

It is not a de Polignac number, because 2102223101223 - 214 = 2102223084839 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 2102223101223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102223101227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2192365 + ... + 3001817.

It is an arithmetic number, because the mean of its divisors is an integer number (55172384640).

Almost surely, 22102223101223 is an apocalyptic number.

2102223101223 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2102223101223 is a deficient number, since it is larger than the sum of its proper divisors (1428809515737).

2102223101223 is a wasteful number, since it uses less digits than its factorization.

2102223101223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 809788.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 2102223101223 its reverse (3221013222012), we get a palindrome (5323236323235).

The spelling of 2102223101223 in words is "two trillion, one hundred two billion, two hundred twenty-three million, one hundred one thousand, two hundred twenty-three".

Divisors: 1 3 7 19 21 23 57 69 133 161 283 399 437 483 849 1311 1981 3059 5377 5943 6509 9177 16131 19527 37639 45563 112917 123671 136689 371013 809453 865697 2428359 2597091 5666171 15379607 16998513 18617419 46138821 55852257 107657249 130321933 229075199 322971747 353730961 390965799 687225597 1061192883 1603526393 2476116727 4352428781 4810579179 5268729577 7428350181 13057286343 15806188731 30467001467 36881107039 91401004401 100105861963 110643321117 300317585889 700741033741 2102223101223