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11220102231 = 313287694929
BaseRepresentation
bin10100111001100010…
…10010110001010111
31001221221121020201220
422130301102301113
5140434321232411
65053205421423
7545021203212
oct123461226127
931857536656
1011220102231
114838500968
12221170a873
13109a6cc760
14786206779
1545a069b06
hex29cc52c57

11220102231 has 8 divisors (see below), whose sum is σ = 16110916080. Its totient is φ = 6904678272.

The previous prime is 11220102199. The next prime is 11220102277. The reversal of 11220102231 is 13220102211.

11220102231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11220102231 - 25 = 11220102199 is a prime.

It is a super-2 number, since 2×112201022312 (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11220102231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11220102031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143847426 + ... + 143847503.

It is an arithmetic number, because the mean of its divisors is an integer number (2013864510).

Almost surely, 211220102231 is an apocalyptic number.

11220102231 is a deficient number, since it is larger than the sum of its proper divisors (4890813849).

11220102231 is a wasteful number, since it uses less digits than its factorization.

11220102231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287694945.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 11220102231 its reverse (13220102211), we get a palindrome (24440204442).

The spelling of 11220102231 in words is "eleven billion, two hundred twenty million, one hundred two thousand, two hundred thirty-one".

Divisors: 1 3 13 39 287694929 863084787 3740034077 11220102231