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12202221210220 = 22510931631769633
BaseRepresentation
bin1011000110010000110100…
…0011111000101001101100
31121012112001202221221220001
42301210031003320221230
53044410122112211340
641541342324234044
72366403262645036
oct261441503705154
947175052857801
1012202221210220
113984a29842128
121450a5723b924
136a6883c58622
1430283aa9cc56
1516261b3a129a
hexb190d0f8a6c

12202221210220 has 48 divisors (see below), whose sum is σ = 25867943529120. Its totient is φ = 4834577995776.

The previous prime is 12202221210203. The next prime is 12202221210281. The reversal of 12202221210220 is 2201212220221.

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, 6010524 + ... + 7780156.

It is an arithmetic number, because the mean of its divisors is an integer number (538915490190).

Almost surely, 212202221210220 is an apocalyptic number.

12202221210220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12202221210220 is an abundant number, since it is smaller than the sum of its proper divisors (13665722318900).

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

12202221210220 is a wasteful number, since it uses less digits than its factorization.

12202221210220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1772914 (or 1772912 counting only the distinct ones).

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

Adding to 12202221210220 its reverse (2201212220221), we get a palindrome (14403433430441).

The spelling of 12202221210220 in words is "twelve trillion, two hundred two billion, two hundred twenty-one million, two hundred ten thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 109 218 436 545 1090 2180 3163 6326 12652 15815 31630 63260 344767 689534 1379068 1723835 1769633 3447670 3539266 6895340 7078532 8848165 17696330 35392660 192889997 385779994 771559988 964449985 1928899970 3857799940 5597349179 11194698358 22389396716 27986745895 55973491790 111946983580 610111060511 1220222121022 2440444242044 3050555302555 6101110605110 12202221210220