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210201211112001 = 3894409665326839
BaseRepresentation
bin101111110010110101001000…
…100001010000101001000001
31000120021001001211001212020020
4233302311020201100221001
5210022414040021041001
62023021034151004053
762163351652134654
oct5762651041205101
91016231054055206
10210201211112001
1160a8191881397a
121b6aa4a0369629
139039b7361b795
1439c9b15a1789b
151947c38939736
hexbf2d48850a41

210201211112001 has 32 divisors (see below), whose sum is σ = 283534818336000. Its totient is φ = 138502190711808.

The previous prime is 210201211111999. The next prime is 210201211112023. The reversal of 210201211112001 is 100211112102012.

It is a happy number.

It is not a de Polignac number, because 210201211112001 - 21 = 210201211111999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (210281211112001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7831918140 + ... + 7831944978.

It is an arithmetic number, because the mean of its divisors is an integer number (8860463073000).

Almost surely, 2210201211112001 is an apocalyptic number.

It is an amenable number.

210201211112001 is a deficient number, since it is larger than the sum of its proper divisors (73333607223999).

210201211112001 is a wasteful number, since it uses less digits than its factorization.

210201211112001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37993.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 210201211112001 its reverse (100211112102012), we get a palindrome (310412323214013).

The spelling of 210201211112001 in words is "two hundred ten trillion, two hundred one billion, two hundred eleven million, one hundred twelve thousand, one".

Divisors: 1 3 89 267 4409 6653 13227 19959 26839 80517 392401 592117 1177203 1776351 2388671 7166013 29333077 87999231 118333151 178559867 354999453 535679601 2610643853 7831931559 10531650439 15891828163 31594951317 47675484489 787270453603 2361811360809 70067070370667 210201211112001