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120012220220 = 2256000611011
BaseRepresentation
bin110111111000101001…
…0010010011100111100
3102110202212011110111012
41233301102102130330
53431241112021340
6131044410214352
711446005016604
oct1576122223474
9373685143435
10120012220220
1146995851382
121b313a243b8
13b4178a5679
145b46c07c04
1531c60bb565
hex1bf149273c

120012220220 has 12 divisors (see below), whose sum is σ = 252025662504. Its totient is φ = 48004888080.

The previous prime is 120012220219. The next prime is 120012220247. The reversal of 120012220220 is 22022210021.

It is a junction number, because it is equal to n+sod(n) for n = 120012220195 and 120012220204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3000305486 + ... + 3000305525.

It is an arithmetic number, because the mean of its divisors is an integer number (21002138542).

Almost surely, 2120012220220 is an apocalyptic number.

120012220220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120012220220 is an abundant number, since it is smaller than the sum of its proper divisors (132013442284).

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

120012220220 is a wasteful number, since it uses less digits than its factorization.

120012220220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6000611020 (or 6000611018 counting only the distinct ones).

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

Adding to 120012220220 its reverse (22022210021), we get a palindrome (142034430241).

The spelling of 120012220220 in words is "one hundred twenty billion, twelve million, two hundred twenty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 6000611011 12001222022 24002444044 30003055055 60006110110 120012220220