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122102020220 = 22559031034237
BaseRepresentation
bin111000110110111011…
…0001111100001111100
3102200011111111022011012
41301231312033201330
54000031104121340
6132032022014352
711551542022145
oct1615566174174
9380144438135
10122102020220
1147868453014
121b7b78773b8
13b68b83190b
145ca459aacc
1532997bb565
hex1c6dd8f87c

122102020220 has 24 divisors (see below), whose sum is σ = 256457928384. Its totient is φ = 48832486976.

The previous prime is 122102020219. The next prime is 122102020231. The reversal of 122102020220 is 22020201221.

It is a junction number, because it is equal to n+sod(n) for n = 122102020195 and 122102020204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 399059 + ... + 635178.

It is an arithmetic number, because the mean of its divisors is an integer number (10685747016).

Almost surely, 2122102020220 is an apocalyptic number.

122102020220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122102020220 is an abundant number, since it is smaller than the sum of its proper divisors (134355908164).

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

122102020220 is a wasteful number, since it uses less digits than its factorization.

122102020220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040149 (or 1040147 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 122102020220 its reverse (22020201221), we get a palindrome (144122221441).

The spelling of 122102020220 in words is "one hundred twenty-two billion, one hundred two million, twenty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 5903 11806 23612 29515 59030 118060 1034237 2068474 4136948 5171185 10342370 20684740 6105101011 12210202022 24420404044 30525505055 61051010110 122102020220