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12221010301 = 22215502481
BaseRepresentation
bin10110110000110110…
…11101000101111101
31011112200222122111011
423120123131011331
5200012034312201
65340402355221
7611563605433
oct133033350575
934480878434
1012221010301
115201494a15
12245095bb11
1311c9b97056
1483d10cd53
154b7d7a151
hex2d86dd17d

12221010301 has 4 divisors (see below), whose sum is σ = 12226515004. Its totient is φ = 12215505600.

The previous prime is 12221010281. The next prime is 12221010317. The reversal of 12221010301 is 10301012221.

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 5557553401 + 6663456900 = 74549^2 + 81630^2 .

It is a cyclic number.

It is not a de Polignac number, because 12221010301 - 219 = 12220486013 is a prime.

It is a super-2 number, since 2×122210103012 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221010341) 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, 2749020 + ... + 2753461.

It is an arithmetic number, because the mean of its divisors is an integer number (3056628751).

Almost surely, 212221010301 is an apocalyptic number.

It is an amenable number.

12221010301 is a deficient number, since it is larger than the sum of its proper divisors (5504703).

12221010301 is an equidigital number, since it uses as much as digits as its factorization.

12221010301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5504702.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 12221010301 its reverse (10301012221), we get a palindrome (22522022522).

The spelling of 12221010301 in words is "twelve billion, two hundred twenty-one million, ten thousand, three hundred one".

Divisors: 1 2221 5502481 12221010301