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20120220012201 = 343291753469557
BaseRepresentation
bin1001001001100100110101…
…00100010000111010101001
32122020110210201121220011020
410210302122210100322221
510114122202310342301
6110443033530123053
74144431544201161
oct444623244207251
978213721556136
1020120220012201
116457a34733621
12230b524b80489
13b2c436c4122a
144d7b768b55a1
1524d58e2ea436
hex124c9a910ea9

20120220012201 has 16 divisors (see below), whose sum is σ = 27460253962944. Its totient is φ = 13097046924864.

The previous prime is 20120220012187. The next prime is 20120220012293. The reversal of 20120220012201 is 10221002202102.

It is not a de Polignac number, because 20120220012201 - 241 = 17921196756649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20120220012901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26358486 + ... + 27111071.

It is an arithmetic number, because the mean of its divisors is an integer number (1716265872684).

Almost surely, 220120220012201 is an apocalyptic number.

It is an amenable number.

20120220012201 is a deficient number, since it is larger than the sum of its proper divisors (7340033950743).

20120220012201 is a wasteful number, since it uses less digits than its factorization.

20120220012201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53472520.

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

Adding to 20120220012201 its reverse (10221002202102), we get a palindrome (30341222214303).

The spelling of 20120220012201 in words is "twenty trillion, one hundred twenty billion, two hundred twenty million, twelve thousand, two hundred one".

Divisors: 1 3 43 129 2917 8751 125431 376293 53469557 160408671 2299190951 6897572853 155970697769 467912093307 6706740004067 20120220012201