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11221102313231 = 177711003573901
BaseRepresentation
bin1010001101001001110111…
…0100010011111100001111
31110201201121220122221112112
42203102131310103330033
52432321304143010411
635510523033254235
72235461242633406
oct243223564237417
943651556587475
1011221102313231
11363692a7a43a8
12131288456437b
136351b75cb6b5
142ab1660c063d
15146d4753ab8b
hexa349dd13f0f

11221102313231 has 8 divisors (see below), whose sum is σ = 11228456907024. Its totient is φ = 11213748892800.

The previous prime is 11221102313177. The next prime is 11221102313233. The reversal of 11221102313231 is 13231320112211.

It is a happy number.

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 11221102313231 - 226 = 11221035204367 is a prime.

It is a super-2 number, since 2×112211023132312 (a number of 27 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 = 11221102313197 and 11221102313206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11221102313233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19265381 + ... + 19839281.

It is an arithmetic number, because the mean of its divisors is an integer number (1403557113378).

Almost surely, 211221102313231 is an apocalyptic number.

11221102313231 is a deficient number, since it is larger than the sum of its proper divisors (7354593793).

11221102313231 is a wasteful number, since it uses less digits than its factorization.

11221102313231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586681.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 11221102313231 its reverse (13231320112211), we get a palindrome (24452422425442).

The spelling of 11221102313231 in words is "eleven trillion, two hundred twenty-one billion, one hundred two million, three hundred thirteen thousand, two hundred thirty-one".

Divisors: 1 1777 11003 573901 19552331 1019822077 6314632703 11221102313231