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122320131222 = 23149136823413
BaseRepresentation
bin111000111101011011…
…0010001010010010110
3102200201200220111012110
41301322312101102112
54001002423144342
6132105412531450
711560130650242
oct1617266212226
9380650814173
10122320131222
114796a586043
121b858920b86
13b6c4a8a593
145cc5535422
1532ada01c9c
hex1c7ad91496

122320131222 has 16 divisors (see below), whose sum is σ = 246282145200. Its totient is φ = 40499729952.

The previous prime is 122320131221. The next prime is 122320131259. The reversal of 122320131222 is 222131023221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122320131221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68410813 + ... + 68412600.

It is an arithmetic number, because the mean of its divisors is an integer number (15392634075).

Almost surely, 2122320131222 is an apocalyptic number.

122320131222 is an abundant number, since it is smaller than the sum of its proper divisors (123962013978).

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

122320131222 is a wasteful number, since it uses less digits than its factorization.

122320131222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136823567.

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

Adding to 122320131222 its reverse (222131023221), we get a palindrome (344451154443).

The spelling of 122320131222 in words is "one hundred twenty-two billion, three hundred twenty million, one hundred thirty-one thousand, two hundred twenty-two".

Divisors: 1 2 3 6 149 298 447 894 136823413 273646826 410470239 820940478 20386688537 40773377074 61160065611 122320131222