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2221002213 = 31743549063
BaseRepresentation
bin1000010001100001…
…1100110111100101
312201210012121021020
42010120130313211
514022034032323
61004215441353
7106016131053
oct20430346745
95653177236
102221002213
11a3a774921
1251b986259
132951a5cc1
14170d871d3
15ceeb9ae3
hex8461cde5

2221002213 has 8 divisors (see below), whose sum is σ = 3135532608. Its totient is φ = 1393569984.

The previous prime is 2221002197. The next prime is 2221002233. The reversal of 2221002213 is 3122001222.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2221002213 - 24 = 2221002197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2221002192 and 2221002201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221002233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21774481 + ... + 21774582.

It is an arithmetic number, because the mean of its divisors is an integer number (391941576).

Almost surely, 22221002213 is an apocalyptic number.

It is an amenable number.

2221002213 is a deficient number, since it is larger than the sum of its proper divisors (914530395).

2221002213 is a wasteful number, since it uses less digits than its factorization.

2221002213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43549083.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 2221002213 is about 47127.5101506540. The cubic root of 2221002213 is about 1304.7170279427.

Adding to 2221002213 its reverse (3122001222), we get a palindrome (5343003435).

Subtracting 2221002213 from its reverse (3122001222), we obtain a palindrome (900999009).

The spelling of 2221002213 in words is "two billion, two hundred twenty-one million, two thousand, two hundred thirteen".

Divisors: 1 3 17 51 43549063 130647189 740334071 2221002213