Search a number
-
+
1212010010101 = 11680316196197
BaseRepresentation
bin10001101000110001011…
…011010001010111110101
311021212102001122211121101
4101220301123101113311
5124324144030310401
62324442324450101
7153364511050522
oct21506133212765
94255361584541
101212010010101
11428013065480
12176a8b849931
138a3a4845867
14429395d0149
15217d9287101
hex11a316d15f5

1212010010101 has 8 divisors (see below), whose sum is σ = 1322387174304. Its totient is φ = 1101665251920.

The previous prime is 1212010010087. The next prime is 1212010010111. The reversal of 1212010010101 is 1010100102121.

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-1212010010101 is a prime.

It is a super-2 number, since 2×12120100101012 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212010010111) 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, 8023266 + ... + 8172931.

It is an arithmetic number, because the mean of its divisors is an integer number (165298396788).

Almost surely, 21212010010101 is an apocalyptic number.

1212010010101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1212010010101 is a deficient number, since it is larger than the sum of its proper divisors (110377164203).

1212010010101 is a wasteful number, since it uses less digits than its factorization.

1212010010101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16203011.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 1212010010101 its reverse (1010100102121), we get a palindrome (2222110112222).

The spelling of 1212010010101 in words is "one trillion, two hundred twelve billion, ten million, ten thousand, one hundred one".

Divisors: 1 11 6803 74833 16196197 178158167 110182728191 1212010010101