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12122112001211 = 139671591354541
BaseRepresentation
bin1011000001100110011000…
…1011100000010010111011
31120220212021211100111021222
42300121212023200102323
53042102041133014321
641440453230022255
72360536143624602
oct260314613402273
946825254314258
1012122112001211
113953a60224773
12143941a94798b
1369c1583074c4
142dc9db616a39
151604cd50e3ab
hexb06662e04bb

12122112001211 has 8 divisors (see below), whose sum is σ = 12123964027584. Its totient is φ = 12120260143680.

The previous prime is 12122112001163. The next prime is 12122112001253. The reversal of 12122112001211 is 11210021122121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12122112001211 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12122112001211.

It is not an unprimeable number, because it can be changed into a prime (12122112001261) 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, 222229601 + ... + 222284141.

It is an arithmetic number, because the mean of its divisors is an integer number (1515495503448).

Almost surely, 212122112001211 is an apocalyptic number.

12122112001211 is a deficient number, since it is larger than the sum of its proper divisors (1852026373).

12122112001211 is a wasteful number, since it uses less digits than its factorization.

12122112001211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84421.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 12122112001211 its reverse (11210021122121), we get a palindrome (23332133123332).

The spelling of 12122112001211 in words is "twelve trillion, one hundred twenty-two billion, one hundred twelve million, one thousand, two hundred eleven".

Divisors: 1 13967 15913 54541 222256871 761774147 867910933 12122112001211