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20121212200201 = 76742902371429
BaseRepresentation
bin1001001001100110101011…
…01101001010010100001001
32122020120100212121021012221
410210303111231022110021
510114131220310401301
6110443320212134041
74144465252514440
oct444632555122411
978216325537187
1020121212200201
1164583a3801102
12230b761307321
13b2c564674718
144d7c2c58bd57
1524d5eb486da1
hex124cd5b4a509

20121212200201 has 8 divisors (see below), whose sum is σ = 23338890057920. Its totient is φ = 16989339085488.

The previous prime is 20121212200121. The next prime is 20121212200213. The reversal of 20121212200201 is 10200221212102.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20121212200201 - 219 = 20121211675913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20121212204201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21451185246 + ... + 21451186183.

It is an arithmetic number, because the mean of its divisors is an integer number (2917361257240).

Almost surely, 220121212200201 is an apocalyptic number.

It is an amenable number.

20121212200201 is a deficient number, since it is larger than the sum of its proper divisors (3217677857719).

20121212200201 is an equidigital number, since it uses as much as digits as its factorization.

20121212200201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42902371503.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20121212200201 its reverse (10200221212102), we get a palindrome (30321433412303).

The spelling of 20121212200201 in words is "twenty trillion, one hundred twenty-one billion, two hundred twelve million, two hundred thousand, two hundred one".

Divisors: 1 7 67 469 42902371429 300316600003 2874458885743 20121212200201