Search a number
-
+
10212011010001 = 101101109019901
BaseRepresentation
bin1001010010011010101101…
…0010011110011111010001
31100011020222121100110120001
42110212223102132133101
52314303144304310001
633415155540450001
72102536103242213
oct224465322363721
940136877313501
1010212011010001
113287986a96869
12118b1a59a9901
13590cb09956b8
1427439a4965b3
1512a987ab0001
hex949ab49e7d1

10212011010001 has 4 divisors (see below), whose sum is σ = 10313120030004. Its totient is φ = 10110901990000.

The previous prime is 10212011009999. The next prime is 10212011010011. The reversal of 10212011010001 is 10001011021201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4502544486400 + 5709466523601 = 2121920^2 + 2389449^2 .

It is a cyclic number.

It is not a de Polignac number, because 10212011010001 - 21 = 10212011009999 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 10212011010001.

It is not an unprimeable number, because it can be changed into a prime (10212011010011) 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 3 ways as a sum of consecutive naturals, for example, 50554509850 + ... + 50554510051.

It is an arithmetic number, because the mean of its divisors is an integer number (2578280007501).

Almost surely, 210212011010001 is an apocalyptic number.

It is an amenable number.

10212011010001 is a deficient number, since it is larger than the sum of its proper divisors (101109020003).

10212011010001 is a wasteful number, since it uses less digits than its factorization.

10212011010001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101109020002.

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

Adding to 10212011010001 its reverse (10001011021201), we get a palindrome (20213022031202).

The spelling of 10212011010001 in words is "ten trillion, two hundred twelve billion, eleven million, ten thousand, one".

Divisors: 1 101 101109019901 10212011010001