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122101202220 = 223517639718713
BaseRepresentation
bin111000110110111001…
…1000111110100101100
3102200011102221202001220
41301231303013310230
54000030401432340
6132031552303340
711551532044254
oct1615563076454
9380142852056
10122101202220
1147867a44488
121b7b7541b50
13b68b6064aa
145ca4426964
1532996a8ed0
hex1c6dcc7d2c

122101202220 has 96 divisors (see below), whose sum is σ = 362070088128. Its totient is φ = 30638579712.

The previous prime is 122101202219. The next prime is 122101202227. The reversal of 122101202220 is 22202101221.

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 122101202220.

It is not an unprimeable number, because it can be changed into a prime (122101202227) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6515584 + ... + 6534296.

It is an arithmetic number, because the mean of its divisors is an integer number (3771563418).

Almost surely, 2122101202220 is an apocalyptic number.

122101202220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122101202220 is an abundant number, since it is smaller than the sum of its proper divisors (239968885908).

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

122101202220 is a wasteful number, since it uses less digits than its factorization.

122101202220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25139 (or 25137 counting only the distinct ones).

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

Adding to 122101202220 its reverse (22202101221), we get a palindrome (144303303441).

The spelling of 122101202220 in words is "one hundred twenty-two billion, one hundred one million, two hundred two thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 17 20 30 34 51 60 68 85 102 170 204 255 340 510 1020 6397 12794 18713 19191 25588 31985 37426 38382 56139 63970 74852 76764 93565 95955 108749 112278 127940 187130 191910 217498 224556 280695 318121 326247 374260 383820 434996 543745 561390 636242 652494 954363 1087490 1122780 1272484 1304988 1590605 1631235 1908726 2174980 3181210 3262470 3817452 4771815 6362420 6524940 9543630 19087260 119707061 239414122 359121183 478828244 598535305 718242366 1197070610 1436484732 1795605915 2035020037 2394141220 3591211830 4070040074 6105060111 7182423660 8140080148 10175100185 12210120222 20350200370 24420240444 30525300555 40700400740 61050601110 122101202220