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102001220220220 = 225172331287569051
BaseRepresentation
bin10111001100010100000010…
…011111110111010100111100
3111101011012222102012222201021
4113030110002133313110330
5101332141444334021340
61000534414053153524
730325226216302546
oct2714240237672474
9441135872188637
10102001220220220
112a556524714522
12b53462a32b8a4
1344bb89b4311c9
141b28c57776696
15bbd44497de4a
hex5cc5027f753c

102001220220220 has 48 divisors (see below), whose sum is σ = 227776115575008. Its totient is φ = 38235650508800.

The previous prime is 102001220220209. The next prime is 102001220220293. The reversal of 102001220220220 is 22022022100201.

It is a junction number, because it is equal to n+sod(n) for n = 102001220220194 and 102001220220203.

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, 643705306 + ... + 643863745.

It is an arithmetic number, because the mean of its divisors is an integer number (4745335741146).

Almost surely, 2102001220220220 is an apocalyptic number.

102001220220220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102001220220220 is an abundant number, since it is smaller than the sum of its proper divisors (125774895354788).

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

102001220220220 is a wasteful number, since it uses less digits than its factorization.

102001220220220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1287569310 (or 1287569308 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 102001220220220 its reverse (22022022100201), we get a palindrome (124023242320421).

The spelling of 102001220220220 in words is "one hundred two trillion, one billion, two hundred twenty million, two hundred twenty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 233 340 466 932 1165 2330 3961 4660 7922 15844 19805 39610 79220 1287569051 2575138102 5150276204 6437845255 12875690510 21888673867 25751381020 43777347734 87554695468 109443369335 218886738670 300003588883 437773477340 600007177766 1200014355532 1500017944415 3000035888830 5100061011011 6000071777660 10200122022022 20400244044044 25500305055055 51000610110110 102001220220220