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12220201122121 = 92929251449699
BaseRepresentation
bin1011000111010011110010…
…1111110011100101001001
31121021020110211100010020001
42301310330233303211021
53100203432441401441
641553514412203001
72400610655453206
oct261647457634511
947236424303201
1012220201122121
113991615a54053
121454434769461
136a848ac74655
1430366497acad
15162d1eadc731
hexb1d3cbf3949

12220201122121 has 8 divisors (see below), whose sum is σ = 12233800692000. Its totient is φ = 12206602512000.

The previous prime is 12220201122113. The next prime is 12220201122127. The reversal of 12220201122121 is 12122110202221.

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

It is a cyclic number.

It is not a de Polignac number, because 12220201122121 - 23 = 12220201122113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12220201122127) 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, 26949330 + ... + 27399028.

It is an arithmetic number, because the mean of its divisors is an integer number (1529225086500).

Almost surely, 212220201122121 is an apocalyptic number.

It is an amenable number.

12220201122121 is a deficient number, since it is larger than the sum of its proper divisors (13599569879).

12220201122121 is an equidigital number, since it uses as much as digits as its factorization.

12220201122121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479879.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12220201122121 its reverse (12122110202221), we get a palindrome (24342311324342).

The spelling of 12220201122121 in words is "twelve trillion, two hundred twenty billion, two hundred one million, one hundred twenty-two thousand, one hundred twenty-one".

Divisors: 1 929 29251 449699 27174179 417770371 13154145449 12220201122121