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13222120111 = 79558129989
BaseRepresentation
bin11000101000001100…
…11000101010101111
31021010110202021222021
430110012120222233
5204034330320421
610024003531011
7645441111064
oct142406305257
937113667867
1013222120111
1156755a65a2
122690089a67
131329402415
148d6068c6b
15525bca341
hex314198aaf

13222120111 has 8 divisors (see below), whose sum is σ = 13392334400. Its totient is φ = 13051977120.

The previous prime is 13222120103. The next prime is 13222120151. The reversal of 13222120111 is 11102122231.

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 13222120111 - 23 = 13222120103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13222120151) 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, 425905 + ... + 455893.

It is an arithmetic number, because the mean of its divisors is an integer number (1674041800).

Almost surely, 213222120111 is an apocalyptic number.

13222120111 is a deficient number, since it is larger than the sum of its proper divisors (170214289).

13222120111 is an equidigital number, since it uses as much as digits as its factorization.

13222120111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35649.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 13222120111 its reverse (11102122231), we get a palindrome (24324242342).

It can be divided in two parts, 13222120 and 111, that added together give a palindrome (13222231).

The spelling of 13222120111 in words is "thirteen billion, two hundred twenty-two million, one hundred twenty thousand, one hundred eleven".

Divisors: 1 79 5581 29989 440899 2369131 167368609 13222120111