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2213222101 = 5937512239
BaseRepresentation
bin1000001111101011…
…0001011011010101
312201020120022221221
42003322301123111
514013041101401
61003341010341
7105563035366
oct20372613325
95636508857
102213222101
11a36340582
125192539b1
132936b099c
1416dd1db6d
15ce47e7a1
hex83eb16d5

2213222101 has 4 divisors (see below), whose sum is σ = 2250734400. Its totient is φ = 2175709804.

The previous prime is 2213222047. The next prime is 2213222117. The reversal of 2213222101 is 1012223122.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1012223122 = 2506111561.

It is a cyclic number.

It is not a de Polignac number, because 2213222101 - 29 = 2213221589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2213222161) 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, 18756061 + ... + 18756178.

It is an arithmetic number, because the mean of its divisors is an integer number (562683600).

Almost surely, 22213222101 is an apocalyptic number.

It is an amenable number.

2213222101 is a deficient number, since it is larger than the sum of its proper divisors (37512299).

2213222101 is an equidigital number, since it uses as much as digits as its factorization.

2213222101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37512298.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2213222101 is about 47044.8945263989. The cubic root of 2213222101 is about 1303.1917825106.

Adding to 2213222101 its reverse (1012223122), we get a palindrome (3225445223).

The spelling of 2213222101 in words is "two billion, two hundred thirteen million, two hundred twenty-two thousand, one hundred one".

Divisors: 1 59 37512239 2213222101