Search a number
-
+
2220201101 = 10720749543
BaseRepresentation
bin1000010001010101…
…1001010010001101
312201201200220100102
42010111121102031
514021332413401
61004150340445
7106006253336
oct20425312215
95651626312
102220201101
11a3a277a48
1251b65a725
13294c85481
14170c1928d
15cedac56b
hex8455948d

2220201101 has 4 divisors (see below), whose sum is σ = 2240950752. Its totient is φ = 2199451452.

The previous prime is 2220201083. The next prime is 2220201103. The reversal of 2220201101 is 1011020222.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2220201101 - 226 = 2153092237 is a prime.

It is a super-2 number, since 2×22202011012 = 9858585857763224402, which 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 (2220201103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10374665 + ... + 10374878.

It is an arithmetic number, because the mean of its divisors is an integer number (560237688).

Almost surely, 22220201101 is an apocalyptic number.

It is an amenable number.

2220201101 is a deficient number, since it is larger than the sum of its proper divisors (20749651).

2220201101 is a wasteful number, since it uses less digits than its factorization.

2220201101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20749650.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 2220201101 is about 47119.0099747437. The cubic root of 2220201101 is about 1304.5601392857.

Adding to 2220201101 its reverse (1011020222), we get a palindrome (3231221323).

The spelling of 2220201101 in words is "two billion, two hundred twenty million, two hundred one thousand, one hundred one".

Divisors: 1 107 20749543 2220201101