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121200112221202 = 27232230191687739
BaseRepresentation
bin11011100011101100011001…
…101000101011110000010010
3120220010121200012122120110201
4123203230121220223300102
5111341220312212034302
61105434321330445414
734346263523562550
oct3343543150536022
9526117605576421
10121200112221202
11356887517397a3
121171548843386a
135282177046a51
1421d018c44abd0
15e02a5e10bc87
hex6e3b19a2bc12

121200112221202 has 32 divisors (see below), whose sum is σ = 216806270284800. Its totient is φ = 49684265833488.

The previous prime is 121200112221163. The next prime is 121200112221229. The reversal of 121200112221202 is 202122211002121.

121200112221202 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 121200112221202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70968249 + ... + 72655987.

It is an arithmetic number, because the mean of its divisors is an integer number (6775195946400).

Almost surely, 2121200112221202 is an apocalyptic number.

121200112221202 is a deficient number, since it is larger than the sum of its proper divisors (95606158063598).

121200112221202 is a wasteful number, since it uses less digits than its factorization.

121200112221202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1910790.

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

Adding to 121200112221202 its reverse (202122211002121), we get a palindrome (323322323223323).

The spelling of 121200112221202 in words is "one hundred twenty-one trillion, two hundred billion, one hundred twelve million, two hundred twenty-one thousand, two hundred two".

Divisors: 1 2 7 14 23 46 161 322 223019 446038 1561133 1687739 3122266 3375478 5129437 10258874 11814173 23628346 35906059 38817997 71812118 77635994 271725979 543451958 376397864041 752795728082 2634785048287 5269570096574 8657150872943 17314301745886 60600056110601 121200112221202