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12200211222220 = 2257176201782657
BaseRepresentation
bin1011000110001001010101…
…0000011000111011001100
31121012022212200210222201001
42301202111100120323030
53044342013033102340
641540411043230044
72366302415223520
oct261422520307314
947168780728631
1012200211222220
1139840981a341a
121450596078324
136a66236c5008
143026c9b63d80
1516254ebb929a
hexb1895418ecc

12200211222220 has 96 divisors (see below), whose sum is σ = 31003764688512. Its totient is φ = 3936763772928.

The previous prime is 12200211222197. The next prime is 12200211222233. The reversal of 12200211222220 is 2222211200221.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 147559132 + ... + 147641788.

It is an arithmetic number, because the mean of its divisors is an integer number (322955882172).

Almost surely, 212200211222220 is an apocalyptic number.

12200211222220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12200211222220 is an abundant number, since it is smaller than the sum of its proper divisors (18803553466292).

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

12200211222220 is a wasteful number, since it uses less digits than its factorization.

12200211222220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144707 (or 144705 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 12200211222220 its reverse (2222211200221), we get a palindrome (14422422422441).

The spelling of 12200211222220 in words is "twelve trillion, two hundred billion, two hundred eleven million, two hundred twenty-two thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 14 17 20 28 34 35 68 70 85 119 140 170 238 340 476 595 1190 2380 62017 82657 124034 165314 248068 310085 330628 413285 434119 578599 620170 826570 868238 1054289 1157198 1240340 1405169 1653140 1736476 2108578 2170595 2314396 2810338 2892995 4217156 4341190 5271445 5620676 5785990 7025845 7380023 8682380 9836183 10542890 11571980 14051690 14760046 19672366 21085780 28103380 29520092 36900115 39344732 49180915 73800230 98361830 147600460 196723660 5126139169 10252278338 20504556676 25630695845 35882974183 51261391690 71765948366 87144365873 102522783380 143531896732 174288731746 179414870915 348577463492 358829741830 435721829365 610010561111 717659483660 871443658730 1220021122222 1742887317460 2440042244444 3050052805555 6100105611110 12200211222220