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210200011021001 = 1911100523617911
BaseRepresentation
bin101111110010110100000000…
…111111010001101011001001
31000120020220222011212220212102
4233302310000333101223021
5210022404110310133001
62023020315120523145
762163310140420251
oct5762640077215311
91016226864786772
10210200011021001
1160a81362355831
121b6aa2064804b5
139039a11ac4a71
1439c9a404a2961
151947bb83d1e6b
hexbf2d00fd1ac9

210200011021001 has 4 divisors (see below), whose sum is σ = 211300534639104. Its totient is φ = 209099487402900.

The previous prime is 210200011020959. The next prime is 210200011021003. The reversal of 210200011021001 is 100120110002012.

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.

It is a cyclic number.

It is not a de Polignac number, because 210200011021001 - 238 = 209925133114057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210200011021003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 550261808765 + ... + 550261809146.

It is an arithmetic number, because the mean of its divisors is an integer number (52825133659776).

Almost surely, 2210200011021001 is an apocalyptic number.

It is an amenable number.

210200011021001 is a deficient number, since it is larger than the sum of its proper divisors (1100523618103).

210200011021001 is a wasteful number, since it uses less digits than its factorization.

210200011021001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100523618102.

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

Adding to 210200011021001 its reverse (100120110002012), we get a palindrome (310320121023013).

The spelling of 210200011021001 in words is "two hundred ten trillion, two hundred billion, eleven million, twenty-one thousand, one".

Divisors: 1 191 1100523617911 210200011021001