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22131110201 = 534011041317
BaseRepresentation
bin10100100111000111…
…011111000100111001
32010010100120212212012
4110213013133010321
5330311031011301
614100014255305
71412300222114
oct244707370471
963110525765
1022131110201
119427486722
1243577b7535
132119068ba5
1410dd34d57b
15897dcaebb
hex5271df139

22131110201 has 8 divisors (see below), whose sum is σ = 22604931144. Its totient is φ = 21659372800.

The previous prime is 22131110161. The next prime is 22131110207. The reversal of 22131110201 is 10201113122.

It can be written as a sum of positive squares in 4 ways, for example, as 6311508025 + 15819602176 = 79445^2 + 125776^2 .

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 22131110201 - 26 = 22131110137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22131110207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 499406 + ... + 541911.

It is an arithmetic number, because the mean of its divisors is an integer number (2825616393).

Almost surely, 222131110201 is an apocalyptic number.

It is an amenable number.

22131110201 is a deficient number, since it is larger than the sum of its proper divisors (473820943).

22131110201 is a wasteful number, since it uses less digits than its factorization.

22131110201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1041771.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 22131110201 its reverse (10201113122), we get a palindrome (32332223323).

The spelling of 22131110201 in words is "twenty-two billion, one hundred thirty-one million, one hundred ten thousand, two hundred one".

Divisors: 1 53 401 21253 1041317 55189801 417568117 22131110201