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12223221210101 = 111111201928191
BaseRepresentation
bin1011000111011111000011…
…0000100001101111110101
31121021112021022011111002102
42301313300300201233311
53100231124112210401
641555134215151445
72401045550002346
oct261676060415765
947245238144072
1012223221210101
113992925794930
121454b38075585
136a884c870365
1430386dad20cd
15162e49ced56b
hexb1df0c21bf5

12223221210101 has 4 divisors (see below), whose sum is σ = 13334423138304. Its totient is φ = 11112019281900.

The previous prime is 12223221210089. The next prime is 12223221210107. The reversal of 12223221210101 is 10101212232221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12223221210101 - 222 = 12223217015797 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12223221210107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 555600964085 + ... + 555600964106.

It is an arithmetic number, because the mean of its divisors is an integer number (3333605784576).

Almost surely, 212223221210101 is an apocalyptic number.

12223221210101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12223221210101 is a deficient number, since it is larger than the sum of its proper divisors (1111201928203).

12223221210101 is a wasteful number, since it uses less digits than its factorization.

12223221210101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111201928202.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 12223221210101 its reverse (10101212232221), we get a palindrome (22324433442322).

The spelling of 12223221210101 in words is "twelve trillion, two hundred twenty-three billion, two hundred twenty-one million, two hundred ten thousand, one hundred one".

Divisors: 1 11 1111201928191 12223221210101