Search a number
-
+
20210201012201 = 120116827811001
BaseRepresentation
bin1001001100001100011011…
…10110100010011111101001
32122120002001122202022011212
410212012031312202133221
510122110442424342301
6110552234351202505
74154065423112144
oct446061566423751
978502048668155
1020210201012201
116492109657732
122324a57516435
13b37a76b402b5
144dc27106905b
15250aa8b724bb
hex12618dda27e9

20210201012201 has 4 divisors (see below), whose sum is σ = 20227028824404. Its totient is φ = 20193373200000.

The previous prime is 20210201012119. The next prime is 20210201012219. The reversal of 20210201012201 is 10221010201202.

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 1393995816976 + 18816205195225 = 1180676^2 + 4337765^2 .

It is a cyclic number.

It is not a de Polignac number, because 20210201012201 - 210 = 20210201011177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20210201012291) 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, 8413904300 + ... + 8413906701.

It is an arithmetic number, because the mean of its divisors is an integer number (5056757206101).

Almost surely, 220210201012201 is an apocalyptic number.

It is an amenable number.

20210201012201 is a deficient number, since it is larger than the sum of its proper divisors (16827812203).

20210201012201 is a wasteful number, since it uses less digits than its factorization.

20210201012201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16827812202.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20210201012201 its reverse (10221010201202), we get a palindrome (30431211213403).

The spelling of 20210201012201 in words is "twenty trillion, two hundred ten billion, two hundred one million, twelve thousand, two hundred one".

Divisors: 1 1201 16827811001 20210201012201