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12201223301 = 36073338237
BaseRepresentation
bin10110101110011111…
…11110010010000101
31011111022202100211022
423113033332102011
5144442003121201
65334414320525
7611233454411
oct132717762205
934438670738
1012201223301
1151a12aa723
1224461b9145
1311c5a59877
1483a63bd41
154b626c41b
hex2d73fe485

12201223301 has 4 divisors (see below), whose sum is σ = 12201597612. Its totient is φ = 12200848992.

The previous prime is 12201223283. The next prime is 12201223327. The reversal of 12201223301 is 10332210221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10332210221 = 68315127687.

It can be written as a sum of positive squares in 2 ways, for example, as 11777892676 + 423330625 = 108526^2 + 20575^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12201223301 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12201223301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12201223351) 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, 133046 + ... + 205191.

It is an arithmetic number, because the mean of its divisors is an integer number (3050399403).

Almost surely, 212201223301 is an apocalyptic number.

It is an amenable number.

12201223301 is a deficient number, since it is larger than the sum of its proper divisors (374311).

12201223301 is an equidigital number, since it uses as much as digits as its factorization.

12201223301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374310.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 12201223301 its reverse (10332210221), we get a palindrome (22533433522).

The spelling of 12201223301 in words is "twelve billion, two hundred one million, two hundred twenty-three thousand, three hundred one".

Divisors: 1 36073 338237 12201223301