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220202121012220 = 22560150671361541
BaseRepresentation
bin110010000100010111001101…
…001100111010001111111100
31001212200010011102102211111201
4302010113031030322033330
5212330242420434342340
62100155242522225244
764245035556523504
oct6204271514721774
91055603142384451
10220202121012220
1164188216721446
1220844790955224
1395b3c811289a9
143c53ba791ca04
151a6ce686b279a
hexc845cd33a3fc

220202121012220 has 48 divisors (see below), whose sum is σ = 463204301567616. Its totient is φ = 87932312640000.

The previous prime is 220202121012199. The next prime is 220202121012229. The reversal of 220202121012220 is 22210121202022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220202121012229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 608884650 + ... + 609246190.

It is an arithmetic number, because the mean of its divisors is an integer number (9650089615992).

Almost surely, 2220202121012220 is an apocalyptic number.

220202121012220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220202121012220 is an abundant number, since it is smaller than the sum of its proper divisors (243002180555396).

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

220202121012220 is a wasteful number, since it uses less digits than its factorization.

220202121012220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412822 (or 412820 counting only the distinct ones).

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

Adding to 220202121012220 its reverse (22210121202022), we get a palindrome (242412242214242).

The spelling of 220202121012220 in words is "two hundred twenty trillion, two hundred two billion, one hundred twenty-one million, twelve thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 601 1202 2404 3005 6010 12020 50671 101342 202684 253355 361541 506710 723082 1013420 1446164 1807705 3615410 7230820 30453271 60906542 121813084 152266355 217286141 304532710 434572282 609065420 869144564 1086430705 2172861410 4345722820 18319644011 36639288022 73278576044 91598220055 183196440110 366392880220 11010106050611 22020212101222 44040424202444 55050530253055 110101060506110 220202121012220