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220202110001220 = 223534710576470221
BaseRepresentation
bin110010000100010111001100…
…100010111010000001000100
31001212200010010122201102020220
4302010113030202322001010
5212330242410130014340
62100155241450224340
764245035364113454
oct6204271442720104
91055603118642226
10220202110001220
1164188210490746
12208447891250b0
1395b3c7ba71bc9
143c53ba6293d64
151a6ce67739ed0
hexc845cc8ba044

220202110001220 has 48 divisors (see below), whose sum is σ = 618342755059008. Its totient is φ = 58551339137920.

The previous prime is 220202110001189. The next prime is 220202110001239. The reversal of 220202110001220 is 22100011202022.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 220202110001220.

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, 5288214291 + ... + 5288255930.

It is an arithmetic number, because the mean of its divisors is an integer number (12882140730396).

Almost surely, 2220202110001220 is an apocalyptic number.

220202110001220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220202110001220 is an abundant number, since it is smaller than the sum of its proper divisors (398140645057788).

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

220202110001220 is a wasteful number, since it uses less digits than its factorization.

220202110001220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10576470580 (or 10576470578 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 220202110001220 its reverse (22100011202022), we get a palindrome (242302121203242).

The spelling of 220202110001220 in words is "two hundred twenty trillion, two hundred two billion, one hundred ten million, one thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 347 694 1041 1388 1735 2082 3470 4164 5205 6940 10410 20820 10576470221 21152940442 31729410663 42305880884 52882351105 63458821326 105764702210 126917642652 158647053315 211529404420 317294106630 634588213260 3670035166687 7340070333374 11010105500061 14680140666748 18350175833435 22020211000122 36700351666870 44040422000244 55050527500305 73400703333740 110101055000610 220202110001220