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12120222002201 = 20669895863709
BaseRepresentation
bin1011000001011111010110…
…0001101110110000011001
31120220200102002222121001122
42300113311201232300121
53042034203313032301
641435541512455025
72360441254120445
oct260276541566031
946820362877048
1012120222002201
11395318038a515
121438b919aa475
1369bc16895ab1
142dc89c5d3825
1516041c62981b
hexb05f586ec19

12120222002201 has 4 divisors (see below), whose sum is σ = 12120229932900. Its totient is φ = 12120214071504.

The previous prime is 12120222002197. The next prime is 12120222002209. The reversal of 12120222002201 is 10220022202121.

It is a happy number.

12120222002201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 2323002739600 + 9797219262601 = 1524140^2 + 3130051^2 .

It is a cyclic number.

It is not a de Polignac number, because 12120222002201 - 22 = 12120222002197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12120222002201.

It is not an unprimeable number, because it can be changed into a prime (12120222002209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 864866 + ... + 4998843.

It is an arithmetic number, because the mean of its divisors is an integer number (3030057483225).

Almost surely, 212120222002201 is an apocalyptic number.

It is an amenable number.

12120222002201 is a deficient number, since it is larger than the sum of its proper divisors (7930699).

12120222002201 is an equidigital number, since it uses as much as digits as its factorization.

12120222002201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7930698.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 12120222002201 its reverse (10220022202121), we get a palindrome (22340244204322).

The spelling of 12120222002201 in words is "twelve trillion, one hundred twenty billion, two hundred twenty-two million, two thousand, two hundred one".

Divisors: 1 2066989 5863709 12120222002201