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211112210112100 = 2252111011900199911
BaseRepresentation
bin110000000000000101100100…
…010010101001111001100100
31000200111010111220102001002121
4300000011210102221321210
5210132330301242041400
62024555335505115324
762316232240645123
oct6000054422517144
91020433456361077
10211112210112100
11612a3204a192a0
121b816b64028b44
1390a4a46a4206b
143a1bc57acdaba
1519617a68a921a
hexc001644a9e64

211112210112100 has 72 divisors (see below), whose sum is σ = 504708298226496. Its totient is φ = 76007996400000.

The previous prime is 211112210112091. The next prime is 211112210112103. The reversal of 211112210112100 is 1211012211112.

It is not an unprimeable number, because it can be changed into a prime (211112210112103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 949988856 + ... + 950211055.

It is an arithmetic number, because the mean of its divisors is an integer number (7009837475368).

Almost surely, 2211112210112100 is an apocalyptic number.

211112210112100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211112210112100 is an abundant number, since it is smaller than the sum of its proper divisors (293596088114396).

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

211112210112100 is a wasteful number, since it uses less digits than its factorization.

211112210112100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1900200037 (or 1900200030 counting only the distinct ones).

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

Adding to 211112210112100 its reverse (1211012211112), we get a palindrome (212323222323212).

The spelling of 211112210112100 in words is "two hundred eleven trillion, one hundred twelve billion, two hundred ten million, one hundred twelve thousand, one hundred".

Divisors: 1 2 4 5 10 11 20 22 25 44 50 55 100 101 110 202 220 275 404 505 550 1010 1100 1111 2020 2222 2525 4444 5050 5555 10100 11110 22220 27775 55550 111100 1900199911 3800399822 7600799644 9500999555 19001999110 20902199021 38003998220 41804398042 47504997775 83608796084 95009995550 104510995105 190019991100 191920191011 209021990210 383840382022 418043980420 522554975525 767680764044 959600955055 1045109951050 1919201910110 2090219902100 2111122101121 3838403820220 4222244202242 4798004775275 8444488404484 9596009550550 10555610505605 19192019101100 21111221011210 42222442022420 52778052528025 105556105056050 211112210112100