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12002221211201 = 13923247785477
BaseRepresentation
bin1010111010100111110000…
…1000011011111001000001
31120111101211102200022201222
42232221330020123321001
53033121022112224301
641305424434204425
72346063142003634
oct256517410337101
946441742608658
1012002221211201
113908127a81741
12141a13b723715
13690a5c939a40
142d6ca69bbc1b
1515c312e2c31b
hexaea7c21be41

12002221211201 has 4 divisors (see below), whose sum is σ = 12925468996692. Its totient is φ = 11078973425712.

The previous prime is 12002221211143. The next prime is 12002221211209. The reversal of 12002221211201 is 10211212220021.

12002221211201 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.

It can be written as a sum of positive squares in 2 ways, for example, as 801519116176 + 11200702095025 = 895276^2 + 3346745^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12002221211201 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 12002221211201.

It is not an unprimeable number, because it can be changed into a prime (12002221211209) 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, 461623892726 + ... + 461623892751.

It is an arithmetic number, because the mean of its divisors is an integer number (3231367249173).

Almost surely, 212002221211201 is an apocalyptic number.

It is an amenable number.

12002221211201 is a deficient number, since it is larger than the sum of its proper divisors (923247785491).

12002221211201 is an equidigital number, since it uses as much as digits as its factorization.

12002221211201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 923247785490.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12002221211201 its reverse (10211212220021), we get a palindrome (22213433431222).

The spelling of 12002221211201 in words is "twelve trillion, two billion, two hundred twenty-one million, two hundred eleven thousand, two hundred one".

Divisors: 1 13 923247785477 12002221211201