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12120222201 = 337500921799
BaseRepresentation
bin10110100100110101…
…11110100111111001
31011021200100002012120
423102122332213321
5144310234102301
65322402231453
7606231121533
oct132232764771
934250302176
1012120222201
11515a60536a
122423055589
1311b2038919
1482d994853
154ae0bbe36
hex2d26be9f9

12120222201 has 16 divisors (see below), whose sum is σ = 16601136000. Its totient is φ = 7859835648.

The previous prime is 12120222181. The next prime is 12120222203. The reversal of 12120222201 is 10222202121.

It is not a de Polignac number, because 12120222201 - 26 = 12120222137 is a prime.

It is a super-2 number, since 2×121202222012 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12120222203) 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, 545100 + ... + 566898.

It is an arithmetic number, because the mean of its divisors is an integer number (1037571000).

Almost surely, 212120222201 is an apocalyptic number.

It is an amenable number.

12120222201 is a deficient number, since it is larger than the sum of its proper divisors (4480913799).

12120222201 is a wasteful number, since it uses less digits than its factorization.

12120222201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26848.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 12120222201 its reverse (10222202121), we get a palindrome (22342424322).

The spelling of 12120222201 in words is "twelve billion, one hundred twenty million, two hundred twenty-two thousand, two hundred one".

Divisors: 1 3 37 111 5009 15027 21799 65397 185333 555999 806563 2419689 109191191 327573573 4040074067 12120222201