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122220102220 = 2256111005111
BaseRepresentation
bin111000111010011100…
…0101100001001001100
3102200110201200111012121
41301310320230021030
54000301321232340
6132051440542324
711554504504426
oct1616470541114
9380421614177
10122220102220
1147919074847
121b82b3219a4
13b6aa136818
145cb6137816
1532a4d4394a
hex1c74e2c24c

122220102220 has 12 divisors (see below), whose sum is σ = 256662214704. Its totient is φ = 48888040880.

The previous prime is 122220102181. The next prime is 122220102239. The reversal of 122220102220 is 22201022221.

It is a junction number, because it is equal to n+sod(n) for n = 122220102194 and 122220102203.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3055502536 + ... + 3055502575.

It is an arithmetic number, because the mean of its divisors is an integer number (21388517892).

Almost surely, 2122220102220 is an apocalyptic number.

122220102220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122220102220 is an abundant number, since it is smaller than the sum of its proper divisors (134442112484).

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

122220102220 is a wasteful number, since it uses less digits than its factorization.

122220102220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6111005120 (or 6111005118 counting only the distinct ones).

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

Adding to 122220102220 its reverse (22201022221), we get a palindrome (144421124441).

The spelling of 122220102220 in words is "one hundred twenty-two billion, two hundred twenty million, one hundred two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 6111005111 12222010222 24444020444 30555025555 61110051110 122220102220