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220101012102231 = 32133771716104009
BaseRepresentation
bin110010000010111001000010…
…101001000001110001010111
31001212022110011222012000201200
4302002321002221001301113
5212322113333044232411
62100041001543323543
764234526156132331
oct6202710251016127
91055273158160650
10220101012102231
1164149351345907
12208290737505b3
1395a7589968bc0
143c4cd354c0451
151a6a4ebe31e56
hexc82e42a41c57

220101012102231 has 48 divisors (see below), whose sum is σ = 356585423987520. Its totient is φ = 129929911211520.

The previous prime is 220101012102199. The next prime is 220101012102247. The reversal of 220101012102231 is 132201210101022.

220101012102231 is a `hidden beast` number, since 220 + 1 + 0 + 1 + 0 + 1 + 210 + 2 + 231 = 666.

It is not a de Polignac number, because 220101012102231 - 25 = 220101012102199 is a prime.

It is a super-2 number, since 2×2201010121022312 (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220101012102731) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 357744646 + ... + 358359363.

It is an arithmetic number, because the mean of its divisors is an integer number (7428862999740).

Almost surely, 2220101012102231 is an apocalyptic number.

220101012102231 is a deficient number, since it is larger than the sum of its proper divisors (136484411885289).

220101012102231 is a wasteful number, since it uses less digits than its factorization.

220101012102231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 716104136 (or 716104133 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 220101012102231 its reverse (132201210101022), we get a palindrome (352302222203253).

The spelling of 220101012102231 in words is "two hundred twenty trillion, one hundred one billion, twelve million, one hundred two thousand, two hundred thirty-one".

Divisors: 1 3 9 13 37 39 71 111 117 213 333 481 639 923 1443 2627 2769 4329 7881 8307 23643 34151 102453 307359 716104009 2148312027 6444936081 9309352117 26495848333 27928056351 50843384639 79487544999 83784169053 152530153917 238462634997 344446028329 457590461751 660964000307 1033338084987 1881205231643 1982892000921 3100014254961 5643615694929 5948676002763 16930847084787 24455668011359 73367004034077 220101012102231