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12122110121001 = 39741656735811
BaseRepresentation
bin1011000001100110011000…
…0100010101010000101001
31120220212021200210222010120
42300121212010111100221
53042102040142333001
641440453121433453
72360536121634126
oct260314604252051
946825250728116
1012122110121001
113953a5a160081
12143941a19b889
1369c157ac975a
142dc9db28774d
151604cd28c236
hexb0666115429

12122110121001 has 8 divisors (see below), whose sum is σ = 16329440438304. Its totient is φ = 7998093275520.

The previous prime is 12122110120973. The next prime is 12122110121003. The reversal of 12122110121001 is 10012101122121.

It is a happy number.

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

It is not a de Polignac number, because 12122110121001 - 215 = 12122110088233 is a prime.

It is a super-2 number, since 2×121221101210012 (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12122110121003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20828367615 + ... + 20828368196.

It is an arithmetic number, because the mean of its divisors is an integer number (2041180054788).

Almost surely, 212122110121001 is an apocalyptic number.

It is an amenable number.

12122110121001 is a deficient number, since it is larger than the sum of its proper divisors (4207330317303).

12122110121001 is an equidigital number, since it uses as much as digits as its factorization.

12122110121001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41656735911.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 12122110121001 its reverse (10012101122121), we get a palindrome (22134211243122).

The spelling of 12122110121001 in words is "twelve trillion, one hundred twenty-two billion, one hundred ten million, one hundred twenty-one thousand, one".

Divisors: 1 3 97 291 41656735811 124970207433 4040703373667 12122110121001