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12210210101112 = 23313716322782623
BaseRepresentation
bin1011000110101110100100…
…1111000101011101111000
31121020021200112110122221220
42301223221033011131320
53100023002241213422
641545143150032040
72400105250256112
oct261535117053570
947207615418856
1012210210101112
1139883593120a1
1214525067a8620
136a75580ac0ba
14302d97ab43b2
15162937904e5c
hexb1ae93c5778

12210210101112 has 64 divisors (see below), whose sum is σ = 30936980782080. Its totient is φ = 4015573823232.

The previous prime is 12210210101101. The next prime is 12210210101129. The reversal of 12210210101112 is 21110101201221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12210210101091 and 12210210101100.

It is a congruent number.

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, 10855368 + ... + 11927255.

It is an arithmetic number, because the mean of its divisors is an integer number (483390324720).

Almost surely, 212210210101112 is an apocalyptic number.

12210210101112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12210210101112 is an abundant number, since it is smaller than the sum of its proper divisors (18726770680968).

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

12210210101112 is a wasteful number, since it uses less digits than its factorization.

12210210101112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22782932 (or 22782928 counting only the distinct ones).

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

Adding to 12210210101112 its reverse (21110101201221), we get a palindrome (33320311302333).

The spelling of 12210210101112 in words is "twelve trillion, two hundred ten billion, two hundred ten million, one hundred one thousand, one hundred twelve".

Divisors: 1 2 3 4 6 8 12 24 137 163 274 326 411 489 548 652 822 978 1096 1304 1644 1956 3288 3912 22331 44662 66993 89324 133986 178648 267972 535944 22782623 45565246 68347869 91130492 136695738 182260984 273391476 546782952 3121219351 3713567549 6242438702 7427135098 9363658053 11140702647 12484877404 14854270196 18727316106 22281405294 24969754808 29708540392 37454632212 44562810588 74909264424 89125621176 508758754213 1017517508426 1526276262639 2035035016852 3052552525278 4070070033704 6105105050556 12210210101112