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2202210221 = 13952330293
BaseRepresentation
bin1000001101000011…
…0000111110101101
312200110211212111112
42003100300332231
514002231211341
61002305001405
7105400322651
oct20320607655
95613755445
102202210221
11a300aa152
12515623265
13291326693
1416c694a61
15cd506aeb
hex83430fad

2202210221 has 8 divisors (see below), whose sum is σ = 2222367840. Its totient is φ = 2182114512.

The previous prime is 2202210137. The next prime is 2202210281. The reversal of 2202210221 is 1220122022.

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

It is a cyclic number.

It is not a de Polignac number, because 2202210221 - 222 = 2198015917 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2202210196 and 2202210205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2202210281) 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, 57551 + ... + 87843.

It is an arithmetic number, because the mean of its divisors is an integer number (277795980).

Almost surely, 22202210221 is an apocalyptic number.

It is an amenable number.

2202210221 is a deficient number, since it is larger than the sum of its proper divisors (20157619).

2202210221 is a wasteful number, since it uses less digits than its factorization.

2202210221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30955.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 2202210221 is about 46927.7127186058. The cubic root of 2202210221 is about 1301.0268457022.

Adding to 2202210221 its reverse (1220122022), we get a palindrome (3422332243).

The spelling of 2202210221 in words is "two billion, two hundred two million, two hundred ten thousand, two hundred twenty-one".

Divisors: 1 139 523 30293 72697 4210727 15843239 2202210221