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2201032121 = 61714872399
BaseRepresentation
bin1000001100110001…
…0001010110111001
312200101122000110012
42003030101112321
514001431011441
61002223431305
7105354315161
oct20314212671
95611560405
102201032121
11a2a475012
12515155535
13291003392
1416c4695a1
15cd3729eb
hex833115b9

2201032121 has 8 divisors (see below), whose sum is σ = 2207001600. Its totient is φ = 2195071648.

The previous prime is 2201032091. The next prime is 2201032129. The reversal of 2201032121 is 1212301022.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2201032121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2201032096 and 2201032105.

It is not an unprimeable number, because it can be changed into a prime (2201032129) 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, 916280 + ... + 918678.

It is an arithmetic number, because the mean of its divisors is an integer number (275875200).

Almost surely, 22201032121 is an apocalyptic number.

It is an amenable number.

2201032121 is a deficient number, since it is larger than the sum of its proper divisors (5969479).

2201032121 is a wasteful number, since it uses less digits than its factorization.

2201032121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4503.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2201032121 is about 46915.1587549270. The cubic root of 2201032121 is about 1300.7948041055.

Adding to 2201032121 its reverse (1212301022), we get a palindrome (3413333143).

The spelling of 2201032121 in words is "two billion, two hundred one million, thirty-two thousand, one hundred twenty-one".

Divisors: 1 617 1487 2399 917479 1480183 3567313 2201032121