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12122220010001 = 25148295697251
BaseRepresentation
bin1011000001100110110010…
…0111100001101000010001
31120220212120100120220111112
42300121230213201220101
53042102301310310001
641440512045023105
72360541624654203
oct260315447415021
946825510526445
1012122220010001
113954006196332
12143944ab54a95
1369c1747c342a
142dca0bad0773
151604d7c46cbb
hexb066c9e1a11

12122220010001 has 4 divisors (see below), whose sum is σ = 12170515707504. Its totient is φ = 12073924312500.

The previous prime is 12122220009937. The next prime is 12122220010039. The reversal of 12122220010001 is 10001002222121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12122220010001 - 26 = 12122220009937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12122220010081) 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 3 ways as a sum of consecutive naturals, for example, 24147848375 + ... + 24147848876.

It is an arithmetic number, because the mean of its divisors is an integer number (3042628926876).

Almost surely, 212122220010001 is an apocalyptic number.

It is an amenable number.

12122220010001 is a deficient number, since it is larger than the sum of its proper divisors (48295697503).

12122220010001 is an equidigital number, since it uses as much as digits as its factorization.

12122220010001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48295697502.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12122220010001 its reverse (10001002222121), we get a palindrome (22123222232122).

The spelling of 12122220010001 in words is "twelve trillion, one hundred twenty-two billion, two hundred twenty million, ten thousand, one".

Divisors: 1 251 48295697251 12122220010001