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12001010011201 = 20455758668293
BaseRepresentation
bin1010111010100011001111…
…1100000100110001000001
31120111021201000120222200201
42232220303330010301001
53033111032030324301
641305104330045201
72346021133660411
oct256506374046101
946437630528621
1012001010011201
113907666316202
121419a61b79801
136908c8a23753
142d6bcdbb4641
1515c29192d201
hexaea33f04c41

12001010011201 has 4 divisors (see below), whose sum is σ = 12001068884052. Its totient is φ = 12000951138352.

The previous prime is 12001010011181. The next prime is 12001010011213. The reversal of 12001010011201 is 10211001010021.

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 11441468610576 + 559541400625 = 3382524^2 + 748025^2 .

It is a cyclic number.

It is not a de Polignac number, because 12001010011201 - 237 = 11863571057729 is a prime.

It is a super-2 number, since 2×120010100112012 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12001010011301) 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, 29129590 + ... + 29538703.

It is an arithmetic number, because the mean of its divisors is an integer number (3000267221013).

Almost surely, 212001010011201 is an apocalyptic number.

It is an amenable number.

12001010011201 is a deficient number, since it is larger than the sum of its proper divisors (58872851).

12001010011201 is an equidigital number, since it uses as much as digits as its factorization.

12001010011201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58872850.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 12001010011201 its reverse (10211001010021), we get a palindrome (22212011021222).

The spelling of 12001010011201 in words is "twelve trillion, one billion, ten million, eleven thousand, two hundred one".

Divisors: 1 204557 58668293 12001010011201