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12222213311 = 711158730043
BaseRepresentation
bin10110110001000000…
…00010110010111111
31011112210020202201002
423120200002302333
5200012341311221
65340444240515
7611610045650
oct133040026277
934483222632
1012222213311
115202136840
12245124013b
1311ca1c87a9
1483d343527
154b801680b
hex2d8802cbf

12222213311 has 8 divisors (see below), whose sum is σ = 15238084224. Its totient is φ = 9523802520.

The previous prime is 12222213287. The next prime is 12222213329. The reversal of 12222213311 is 11331222221.

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 12222213311 - 222 = 12218019007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12222213331) 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, 79364945 + ... + 79365098.

It is an arithmetic number, because the mean of its divisors is an integer number (1904760528).

Almost surely, 212222213311 is an apocalyptic number.

12222213311 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12222213311 is a deficient number, since it is larger than the sum of its proper divisors (3015870913).

12222213311 is a wasteful number, since it uses less digits than its factorization.

12222213311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158730061.

The product of its digits is 288, while the sum is 20.

Adding to 12222213311 its reverse (11331222221), we get a palindrome (23553435532).

The spelling of 12222213311 in words is "twelve billion, two hundred twenty-two million, two hundred thirteen thousand, three hundred eleven".

Divisors: 1 7 11 77 158730043 1111110301 1746030473 12222213311