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122204312012 = 22811139926927
BaseRepresentation
bin111000111001111110…
…0011101000111001100
3102200102121222021010002
41301303330131013030
54000233300441022
6132050114303432
711554223341016
oct1616374350714
9380377867102
10122204312012
114791016a392
121b825b87b78
13b6a6a985c3
145cb3dc71b6
1532a3775092
hex1c73f1d1cc

122204312012 has 24 divisors (see below), whose sum is σ = 214282252800. Its totient is φ = 60980927760.

The previous prime is 122204311981. The next prime is 122204312017. The reversal of 122204312012 is 210213402221.

It is not an unprimeable number, because it can be changed into a prime (122204312017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4524893 + ... + 4551819.

It is an arithmetic number, because the mean of its divisors is an integer number (8928427200).

Almost surely, 2122204312012 is an apocalyptic number.

It is an amenable number.

122204312012 is a deficient number, since it is larger than the sum of its proper divisors (92077940788).

122204312012 is a wasteful number, since it uses less digits than its factorization.

122204312012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29141 (or 29139 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 122204312012 its reverse (210213402221), we get a palindrome (332417714233).

The spelling of 122204312012 in words is "one hundred twenty-two billion, two hundred four million, three hundred twelve thousand, twelve".

Divisors: 1 2 4 811 1399 1622 2798 3244 5596 26927 53854 107708 1134589 2269178 4538356 21837797 37670873 43675594 75341746 87351188 150683492 30551078003 61102156006 122204312012