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200110102121 = 2942011642549
BaseRepresentation
bin1011101001011101111…
…1011101011001101001
3201010112000110110012202
42322113133131121221
511234311141231441
6231532421545545
720312625542306
oct2722737353151
9633460413182
10200110102121
1177958a32596
12329485752b5
1315b4108bb67
1499849820ad
155312e7219b
hex2e977dd669

200110102121 has 8 divisors (see below), whose sum is σ = 207059853000. Its totient is φ = 193163644800.

The previous prime is 200110102117. The next prime is 200110102123. The reversal of 200110102121 is 121201011002.

It can be written as a sum of positive squares in 4 ways, for example, as 20873025625 + 179237076496 = 144475^2 + 423364^2 .

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 200110102121 - 22 = 200110102117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (200110102123) 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, 699446 + ... + 943103.

It is an arithmetic number, because the mean of its divisors is an integer number (25882481625).

Almost surely, 2200110102121 is an apocalyptic number.

It is an amenable number.

200110102121 is a deficient number, since it is larger than the sum of its proper divisors (6949750879).

200110102121 is a wasteful number, since it uses less digits than its factorization.

200110102121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1646779.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 200110102121 its reverse (121201011002), we get a palindrome (321311113123).

The spelling of 200110102121 in words is "two hundred billion, one hundred ten million, one hundred two thousand, one hundred twenty-one".

Divisors: 1 29 4201 121829 1642549 47633921 6900348349 200110102121