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2220101212231 = 7317157316033
BaseRepresentation
bin100000010011101000010…
…110000001100001000111
321212020110200002220210101
4200103220112001201013
5242333231402242411
64415522253504531
7316253114640250
oct40235026014107
97766420086711
102220101212231
117865a3290281
122ba32b4a2147
1313147c207666
147964c481b27
153cb3b0118c1
hex204e8581847

2220101212231 has 4 divisors (see below), whose sum is σ = 2537258528272. Its totient is φ = 1902943896192.

The previous prime is 2220101212193. The next prime is 2220101212253. The reversal of 2220101212231 is 1322121010222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2220101212231 - 29 = 2220101211719 is a prime.

It is a super-2 number, since 2×22201012122312 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2220101212199 and 2220101212208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220101212261) 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, 158578658010 + ... + 158578658023.

It is an arithmetic number, because the mean of its divisors is an integer number (634314632068).

Almost surely, 22220101212231 is an apocalyptic number.

2220101212231 is a deficient number, since it is larger than the sum of its proper divisors (317157316041).

2220101212231 is an equidigital number, since it uses as much as digits as its factorization.

2220101212231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317157316040.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 2220101212231 its reverse (1322121010222), we get a palindrome (3542222222453).

The spelling of 2220101212231 in words is "two trillion, two hundred twenty billion, one hundred one million, two hundred twelve thousand, two hundred thirty-one".

Divisors: 1 7 317157316033 2220101212231