Search a number
-
+
12101121101 = 171674262459
BaseRepresentation
bin10110100010100100…
…00111010001001101
31011020100101122102102
423101102013101031
5144240341333401
65320441004445
7605606555306
oct132122072115
934210348372
1012101121101
11514a849433
122418783725
1311ab0ab6b4
1482b2217ad
154ac59756b
hex2d148744d

12101121101 has 8 divisors (see below), whose sum is σ = 12889679040. Its totient is φ = 11321088448.

The previous prime is 12101121089. The next prime is 12101121127. The reversal of 12101121101 is 10112110121.

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-12101121101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12101121301) 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, 2128391 + ... + 2134068.

It is an arithmetic number, because the mean of its divisors is an integer number (1611209880).

Almost surely, 212101121101 is an apocalyptic number.

It is an amenable number.

12101121101 is a deficient number, since it is larger than the sum of its proper divisors (788557939).

12101121101 is a wasteful number, since it uses less digits than its factorization.

12101121101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4262643.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 12101121101 its reverse (10112110121), we get a palindrome (22213231222).

The spelling of 12101121101 in words is "twelve billion, one hundred one million, one hundred twenty-one thousand, one hundred one".

Divisors: 1 17 167 2839 4262459 72461803 711830653 12101121101