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2220101201 = 7131269031
BaseRepresentation
bin1000010001010100…
…0000111001010001
312201201111211022102
42010111000321101
514021321214301
61004144250145
7106005356153
oct20425007121
95651454272
102220101201
11a3a20998a
1251b610955
13294c4bb66
14170bd0ad3
15ced8cb6b
hex84540e51

2220101201 has 4 divisors (see below), whose sum is σ = 2251370304. Its totient is φ = 2188832100.

The previous prime is 2220101171. The next prime is 2220101203. The reversal of 2220101201 is 1021010222.

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 a de Polignac number, because none of the positive numbers 2k-2220101201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2220101203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15634445 + ... + 15634586.

It is an arithmetic number, because the mean of its divisors is an integer number (562842576).

Almost surely, 22220101201 is an apocalyptic number.

It is an amenable number.

2220101201 is a deficient number, since it is larger than the sum of its proper divisors (31269103).

2220101201 is an equidigital number, since it uses as much as digits as its factorization.

2220101201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31269102.

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

The square root of 2220101201 is about 47117.9498811228. The cubic root of 2220101201 is about 1304.5405723626.

Adding to 2220101201 its reverse (1021010222), we get a palindrome (3241111423).

The spelling of 2220101201 in words is "two billion, two hundred twenty million, one hundred one thousand, two hundred one".

Divisors: 1 71 31269031 2220101201