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12210202005 = 3541113175699
BaseRepresentation
bin10110101111100100…
…01110010110010101
31011111221122112021220
423113302032112111
5200001302431010
65335335000553
7611403001401
oct132762162625
934457575256
1012210202005
1151a6382541
122449209159
1311c7881601
1483b8d8101
154b6e42970
hex2d7c8e595

12210202005 has 32 divisors (see below), whose sum is σ = 20190038400. Its totient is φ = 6297016320.

The previous prime is 12210201979. The next prime is 12210202033. The reversal of 12210202005 is 50020201221.

It is not a de Polignac number, because 12210202005 - 217 = 12210070933 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

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, 18355 + ... + 157344.

It is an arithmetic number, because the mean of its divisors is an integer number (630938700).

Almost surely, 212210202005 is an apocalyptic number.

12210202005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12210202005 is a deficient number, since it is larger than the sum of its proper divisors (7979836395).

12210202005 is a wasteful number, since it uses less digits than its factorization.

12210202005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175861.

The product of its (nonzero) digits is 80, while the sum is 15.

Adding to 12210202005 its reverse (50020201221), we get a palindrome (62230403226).

The spelling of 12210202005 in words is "twelve billion, two hundred ten million, two hundred two thousand, five".

Divisors: 1 3 5 15 41 113 123 205 339 565 615 1695 4633 13899 23165 69495 175699 527097 878495 2635485 7203659 19853987 21610977 36018295 59561961 99269935 108054885 297809805 814013467 2442040401 4070067335 12210202005