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112102001222221 = 1779253932875673
BaseRepresentation
bin11001011111010011000111…
…111101100010001001001101
3112200220211212012200121010101
4121133103013331202021031
5104143134344303102341
61034230540505011101
732420050044225343
oct3137230775421115
9480824765617111
10112102001222221
11327a0212218a3a
12106a6151483a91
134a72233b29a0a
141d97aa1547993
15ce606c47e831
hex65f4c7f6224d

112102001222221 has 16 divisors (see below), whose sum is σ = 120246065222400. Its totient is φ = 104131192508928.

The previous prime is 112102001222179. The next prime is 112102001222227. The reversal of 112102001222221 is 122222100201211.

It is a cyclic number.

It is not a de Polignac number, because 112102001222221 - 213 = 112102001214029 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 (112102001222227) 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, 13027960 + ... + 19847713.

It is an arithmetic number, because the mean of its divisors is an integer number (7515379076400).

Almost surely, 2112102001222221 is an apocalyptic number.

It is an amenable number.

112102001222221 is a deficient number, since it is larger than the sum of its proper divisors (8144064000179).

112102001222221 is a wasteful number, since it uses less digits than its factorization.

112102001222221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32878308.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 112102001222221 its reverse (122222100201211), we get a palindrome (234324101423432).

The spelling of 112102001222221 in words is "one hundred twelve trillion, one hundred two billion, one million, two hundred twenty-two thousand, two hundred twenty-one".

Divisors: 1 17 79 1343 2539 43163 200581 3409877 32875673 558886441 2597178167 44152028839 83471333747 1419012673699 6594235366013 112102001222221