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12022020220 = 2257175051269
BaseRepresentation
bin10110011001001000…
…10111100001111100
31011000211112220102011
423030210113201330
5144110114121340
65304533341004
7603626325430
oct131444274174
934024486364
1012022020220
11510a131801
1223b6197764
1311978a4642
148209109c0
154a56700ea
hex2cc91787c

12022020220 has 48 divisors (see below), whose sum is σ = 30550080960. Its totient is φ = 3879373824.

The previous prime is 12022020187. The next prime is 12022020247. The reversal of 12022020220 is 2202022021.

12022020220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12022020220.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2523255 + ... + 2528014.

It is an arithmetic number, because the mean of its divisors is an integer number (636460020).

Almost surely, 212022020220 is an apocalyptic number.

12022020220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12022020220 is an abundant number, since it is smaller than the sum of its proper divisors (18528060740).

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

12022020220 is a wasteful number, since it uses less digits than its factorization.

12022020220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5051302 (or 5051300 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 12022020220 its reverse (2202022021), we get a palindrome (14224042241).

The spelling of 12022020220 in words is "twelve billion, twenty-two million, twenty 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 5051269 10102538 20205076 25256345 35358883 50512690 70717766 85871573 101025380 141435532 171743146 176794415 343486292 353588830 429357865 601101011 707177660 858715730 1202202022 1717431460 2404404044 3005505055 6011010110 12022020220