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12122022120220 = 2253147415992523
BaseRepresentation
bin1011000001100110000011…
…0100101000101100011100
31120220212001120020001202101
42300121200310220230130
53042101400130321340
641440440255334444
72360534002636105
oct260314064505434
946825046201671
1012122022120220
113953a14514861
1214393b4821424
1369c1427c779c
142dc9cd6db3ac
151604c56a7c9a
hexb0660d28b1c

12122022120220 has 48 divisors (see below), whose sum is σ = 26836509708288. Its totient is φ = 4592557442880.

The previous prime is 12122022120211. The next prime is 12122022120259. The reversal of 12122022120220 is 2202122022121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 207967122 + ... + 208025401.

It is an arithmetic number, because the mean of its divisors is an integer number (559093952256).

Almost surely, 212122022120220 is an apocalyptic number.

12122022120220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12122022120220 is an abundant number, since it is smaller than the sum of its proper divisors (14714487588068).

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

12122022120220 is a wasteful number, since it uses less digits than its factorization.

12122022120220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415992610 (or 415992608 counting only the distinct ones).

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

Adding to 12122022120220 its reverse (2202122022121), we get a palindrome (14324144142341).

The spelling of 12122022120220 in words is "twelve trillion, one hundred twenty-two billion, twenty-two million, one hundred twenty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 31 47 62 94 124 155 188 235 310 470 620 940 1457 2914 5828 7285 14570 29140 415992523 831985046 1663970092 2079962615 4159925230 8319850460 12895768213 19551648581 25791536426 39103297162 51583072852 64478841065 78206594324 97758242905 128957682130 195516485810 257915364260 391032971620 606101106011 1212202212022 2424404424044 3030505530055 6061011060110 12122022120220