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211012012021100 = 22527945126558761
BaseRepresentation
bin101111111110101000010000…
…000001010001010101101100
31000200010112212221000122002012
4233332220100001101111230
5210124210100034133400
62024441325144220352
762306054240142623
oct5776502001212554
91020115787018065
10211012012021100
1161264767794524
121b7bb65ba6a6b8
139098469196214
143a170706266ba
15195dd90090d35
hexbfea1005156c

211012012021100 has 36 divisors (see below), whose sum is σ = 457901846578008. Its totient is φ = 84403739280000.

The previous prime is 211012012021079. The next prime is 211012012021117. The reversal of 211012012021100 is 1120210210112.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5334281 + ... + 21224480.

It is an arithmetic number, because the mean of its divisors is an integer number (12719495738278).

Almost surely, 2211012012021100 is an apocalyptic number.

211012012021100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211012012021100 is an abundant number, since it is smaller than the sum of its proper divisors (246889834556908).

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

211012012021100 is a wasteful number, since it uses less digits than its factorization.

211012012021100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26638226 (or 26638219 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 211012012021100 its reverse (1120210210112), we get a palindrome (212132222231212).

The spelling of 211012012021100 in words is "two hundred eleven trillion, twelve billion, twelve million, twenty-one thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 79451 158902 317804 397255 794510 1589020 1986275 3972550 7945100 26558761 53117522 106235044 132793805 265587610 531175220 663969025 1327938050 2655876100 2110120120211 4220240240422 8440480480844 10550600601055 21101201202110 42202402404220 52753003005275 105506006010550 211012012021100