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12202222020220 = 2254099148843889
BaseRepresentation
bin1011000110010000110100…
…0110111110011001111100
31121012112001211111010000001
42301210031012332121330
53044410122314121340
641541342353444044
72366403302560411
oct261441506763174
947175054433001
1012202222020220
113984a2a245751
121450a57570624
136a688418020b
1430283ac30108
1516261b4b129a
hexb190d1be67c

12202222020220 has 24 divisors (see below), whose sum is σ = 25630917858000. Its totient is φ = 4879698024192.

The previous prime is 12202222020187. The next prime is 12202222020223. The reversal of 12202222020220 is 2202022220221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12202222020223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74339965 + ... + 74503924.

It is an arithmetic number, because the mean of its divisors is an integer number (1067954910750).

Almost surely, 212202222020220 is an apocalyptic number.

12202222020220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12202222020220 is an abundant number, since it is smaller than the sum of its proper divisors (13428695837780).

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

12202222020220 is a wasteful number, since it uses less digits than its factorization.

12202222020220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148847997 (or 148847995 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 12202222020220 its reverse (2202022220221), we get a palindrome (14404244240441).

The spelling of 12202222020220 in words is "twelve trillion, two hundred two billion, two hundred twenty-two million, twenty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 4099 8198 16396 20495 40990 81980 148843889 297687778 595375556 744219445 1488438890 2976877780 610111101011 1220222202022 2440444404044 3050555505055 6101111010110 12202222020220