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12102102102101 = 116691164428501
BaseRepresentation
bin1011000000011011110101…
…1111110011000001010101
31120211221122022012022000112
42300012331133303001111
53041240101114231401
641423343504252405
72356230241401404
oct260067537630125
946757568168015
1012102102102101
113946522154370
121435575611105
1369a2b9874c0b
142dba5dcb563b
1515ec0b98a3bb
hexb01bd7f3055

12102102102101 has 8 divisors (see below), whose sum is σ = 13204266424608. Its totient is φ = 11000266650000.

The previous prime is 12102102102073. The next prime is 12102102102107. The reversal of 12102102102101 is 10120120120121.

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-12102102102101 is a prime.

It is a super-2 number, since 2×121021021021012 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12102102102107) 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 7 ways as a sum of consecutive naturals, for example, 82140650 + ... + 82287851.

It is an arithmetic number, because the mean of its divisors is an integer number (1650533303076).

Almost surely, 212102102102101 is an apocalyptic number.

12102102102101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12102102102101 is a deficient number, since it is larger than the sum of its proper divisors (1102164322507).

12102102102101 is a wasteful number, since it uses less digits than its factorization.

12102102102101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164435203.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12102102102101 its reverse (10120120120121), we get a palindrome (22222222222222).

The spelling of 12102102102101 in words is "twelve trillion, one hundred two billion, one hundred two million, one hundred two thousand, one hundred one".

Divisors: 1 11 6691 73601 164428501 1808713511 1100191100191 12102102102101