Search a number
-
+
111110130221 = 1723947300073
BaseRepresentation
bin110011101111010101…
…1100000101000101101
3101121210110022102202012
41213132223200220231
53310023143131341
6123013203411005
711012261344466
oct1473653405055
9347713272665
10111110130221
1143137854402
121964a683a65
13a6294b67ac
1455407dbd6d
152d547d00eb
hex19deae0a2d

111110130221 has 16 divisors (see below), whose sum is σ = 122891105664. Its totient is φ = 99921575424.

The previous prime is 111110130193. The next prime is 111110130239. The reversal of 111110130221 is 122031011111.

It is a cyclic number.

It is not a de Polignac number, because 111110130221 - 234 = 93930261037 is a prime.

It is a super-2 number, since 2×1111101302212 (a number of 23 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 = 111110130196 and 111110130205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111110133221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 220241 + ... + 520313.

It is an arithmetic number, because the mean of its divisors is an integer number (7680694104).

Almost surely, 2111110130221 is an apocalyptic number.

It is an amenable number.

111110130221 is a deficient number, since it is larger than the sum of its proper divisors (11780975443).

111110130221 is a wasteful number, since it uses less digits than its factorization.

111110130221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301060.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 111110130221 its reverse (122031011111), we get a palindrome (233141141332).

The spelling of 111110130221 in words is "one hundred eleven billion, one hundred ten million, one hundred thirty thousand, two hundred twenty-one".

Divisors: 1 17 23 391 947 16099 21781 300073 370277 5101241 6901679 117328543 284169131 4830875227 6535890013 111110130221