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122220313122 = 23374231130121
BaseRepresentation
bin111000111010011100…
…1011111101000100010
3102200110202002012111210
41301310321133220202
54000301400004442
6132051445250550
711554506343335
oct1616471375042
9380422065453
10122220313122
11479191a9246
121b82b403a56
13b6aa1ab80b
145cb619061c
1532a4d8619c
hex1c74e5fa22

122220313122 has 32 divisors (see below), whose sum is σ = 251108394624. Its totient is φ = 39629347200.

The previous prime is 122220313081. The next prime is 122220313123. The reversal of 122220313122 is 221313022221.

It is not an unprimeable number, because it can be changed into a prime (122220313123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 874222 + ... + 1004342.

It is an arithmetic number, because the mean of its divisors is an integer number (7847137332).

Almost surely, 2122220313122 is an apocalyptic number.

122220313122 is an abundant number, since it is smaller than the sum of its proper divisors (128888081502).

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

122220313122 is a wasteful number, since it uses less digits than its factorization.

122220313122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134394.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 122220313122 its reverse (221313022221), we get a palindrome (343533335343).

The spelling of 122220313122 in words is "one hundred twenty-two billion, two hundred twenty million, three hundred thirteen thousand, one hundred twenty-two".

Divisors: 1 2 3 6 37 74 111 222 4231 8462 12693 25386 130121 156547 260242 313094 390363 469641 780726 939282 4814477 9628954 14443431 28886862 550541951 1101083902 1651625853 3303251706 20370052187 40740104374 61110156561 122220313122