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12202112112220 = 2251546739445633
BaseRepresentation
bin1011000110010000011010…
…0011101101011001011100
31121012111210011200012120101
42301210012203231121130
53044404411200042340
641541323430030444
72366400466431052
oct261440643553134
947174704605511
1012202112112220
1139849831a7198
121450a267a8424
136a686747a9b4
1430282a3c01d2
15162611a00c9a
hexb19068ed65c

12202112112220 has 24 divisors (see below), whose sum is σ = 25626092801904. Its totient is φ = 4880529156096.

The previous prime is 12202112112217. The next prime is 12202112112233. The reversal of 12202112112220 is 2221121120221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19413477 + ... + 20032156.

It is an arithmetic number, because the mean of its divisors is an integer number (1067753866746).

Almost surely, 212202112112220 is an apocalyptic number.

12202112112220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12202112112220 is an abundant number, since it is smaller than the sum of its proper divisors (13423980689684).

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

12202112112220 is a wasteful number, since it uses less digits than its factorization.

12202112112220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39461109 (or 39461107 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12202112112220 its reverse (2221121120221), we get a palindrome (14423233232441).

The spelling of 12202112112220 in words is "twelve trillion, two hundred two billion, one hundred twelve million, one hundred twelve thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 15467 30934 61868 77335 154670 309340 39445633 78891266 157782532 197228165 394456330 788912660 610105605611 1220211211222 2440422422444 3050528028055 6101056056110 12202112112220