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2122201222122 = 2313731439179021
BaseRepresentation
bin11110111000011101000…
…011001100101111101010
321111212202212000010112210
4132320131003030233222
5234232232003101442
64302531545145550
7306216060516462
oct36703503145752
97455685003483
102122201222122
1174902529a743
122a3368a8b2b6
131251797ba427
1474a022b0ba2
153a30b34219c
hex1ee1d0ccbea

2122201222122 has 32 divisors (see below), whose sum is σ = 4250469219840. Its totient is φ = 706390005440.

The previous prime is 2122201222121. The next prime is 2122201222151. The reversal of 2122201222122 is 2212221022212.

It is a super-2 number, since 2×21222012221222 (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2122201222121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11764972 + ... + 11943992.

It is an arithmetic number, because the mean of its divisors is an integer number (132827163120).

Almost surely, 22122201222122 is an apocalyptic number.

2122201222122 is an abundant number, since it is smaller than the sum of its proper divisors (2128267997718).

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

2122201222122 is a wasteful number, since it uses less digits than its factorization.

2122201222122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181838.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 2122201222122 its reverse (2212221022212), we get a palindrome (4334422244334).

The spelling of 2122201222122 in words is "two trillion, one hundred twenty-two billion, two hundred one million, two hundred twenty-two thousand, one hundred twenty-two".

Divisors: 1 2 3 6 1373 1439 2746 2878 4119 4317 8238 8634 179021 358042 537063 1074126 1975747 3951494 5927241 11854482 245795833 257611219 491591666 515222438 737387499 772833657 1474774998 1545667314 353700203687 707400407374 1061100611061 2122201222122