Search a number
-
+
2220120220201 = 13170778478477
BaseRepresentation
bin100000010011101001011…
…110100010001000101001
321212020111222212121211021
4200103221132202020221
5242333301234021301
64415524213132441
7316253435335132
oct40235136421051
97766458777737
102220120220201
11786602a93244
122ba33592a121
13131483131390
1479650bccc89
153cb3ca188a1
hex204e97a2229

2220120220201 has 4 divisors (see below), whose sum is σ = 2390898698692. Its totient is φ = 2049341741712.

The previous prime is 2220120220127. The next prime is 2220120220211. The reversal of 2220120220201 is 1020220210222.

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 1056362562025 + 1163757658176 = 1027795^2 + 1078776^2 .

It is a cyclic number.

It is not a de Polignac number, because 2220120220201 - 217 = 2220120089129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2220120220211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85389239226 + ... + 85389239251.

It is an arithmetic number, because the mean of its divisors is an integer number (597724674673).

Almost surely, 22220120220201 is an apocalyptic number.

It is an amenable number.

2220120220201 is a deficient number, since it is larger than the sum of its proper divisors (170778478491).

2220120220201 is a wasteful number, since it uses less digits than its factorization.

2220120220201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170778478490.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 2220120220201 its reverse (1020220210222), we get a palindrome (3240340430423).

The spelling of 2220120220201 in words is "two trillion, two hundred twenty billion, one hundred twenty million, two hundred twenty thousand, two hundred one".

Divisors: 1 13 170778478477 2220120220201