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221010210012200 = 23527157864435723
BaseRepresentation
bin110010010000000111110011…
…000011110011110000101000
31001222112100222112110100102012
4302100013303003303300220
5212432012402230342300
62102014404442055052
764360314014635040
oct6220076303636050
91058470875410365
10221010210012200
11644699a3911594
12209553141aa488
139642233baa18b
143c80d462b8720
151a83eb1bd0435
hexc901f30f3c28

221010210012200 has 48 divisors (see below), whose sum is σ = 587255700893280. Its totient is φ = 75774929146560.

The previous prime is 221010210012199. The next prime is 221010210012247. The reversal of 221010210012200 is 2210012010122.

It is a Harshad number since it is a multiple of its sum of digits (14).

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, 78932216462 + ... + 78932219261.

It is an arithmetic number, because the mean of its divisors is an integer number (12234493768610).

Almost surely, 2221010210012200 is an apocalyptic number.

221010210012200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221010210012200 is an abundant number, since it is smaller than the sum of its proper divisors (366245490881080).

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

221010210012200 is a wasteful number, since it uses less digits than its factorization.

221010210012200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157864435746 (or 157864435737 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 221010210012200 its reverse (2210012010122), we get a palindrome (223220222022322).

The spelling of 221010210012200 in words is "two hundred twenty-one trillion, ten billion, two hundred ten million, twelve thousand, two hundred".

Divisors: 1 2 4 5 7 8 10 14 20 25 28 35 40 50 56 70 100 140 175 200 280 350 700 1400 157864435723 315728871446 631457742892 789322178615 1105051050061 1262915485784 1578644357230 2210102100122 3157288714460 3946610893075 4420204200244 5525255250305 6314577428920 7893221786150 8840408400488 11050510500610 15786443572300 22101021001220 27626276251525 31572887144600 44202042002440 55252552503050 110505105006100 221010210012200