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12122220001222 = 27859377120227
BaseRepresentation
bin1011000001100110110010…
…0111011111011111000110
31120220212120100120110110101
42300121230213133133012
53042102301310014342
641440512044514314
72360541624616462
oct260315447373706
946825510513411
1012122220001222
11395400618a781
12143944ab4b99a
1369c1747bc436
142dca0bacb4a2
151604d7c443b7
hexb066c9df7c6

12122220001222 has 8 divisors (see below), whose sum is σ = 18183561598296. Its totient is φ = 6061032801792.

The previous prime is 12122220001217. The next prime is 12122220001267. The reversal of 12122220001222 is 22210002222121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 12122220001222.

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, 38402928 + ... + 38717299.

It is an arithmetic number, because the mean of its divisors is an integer number (2272945199787).

Almost surely, 212122220001222 is an apocalyptic number.

12122220001222 is a deficient number, since it is larger than the sum of its proper divisors (6061341597074).

12122220001222 is an equidigital number, since it uses as much as digits as its factorization.

12122220001222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77198822.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 12122220001222 its reverse (22210002222121), we get a palindrome (34332222223343).

The spelling of 12122220001222 in words is "twelve trillion, one hundred twenty-two billion, two hundred twenty million, one thousand, two hundred twenty-two".

Divisors: 1 2 78593 157186 77120227 154240454 6061110000611 12122220001222