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12200133221 = 29597130411
BaseRepresentation
bin10110101110010111…
…10100001001100101
31011111020200222111222
423113023310021211
5144441213230341
65334335110125
7611221264343
oct132713641145
934436628458
1012200133221
1151a0725731
122445972345
1311c5767653
1483a436993
154b610444b
hex2d72f4265

12200133221 has 8 divisors (see below), whose sum is σ = 12834741600. Its totient is φ = 11579785840.

The previous prime is 12200133217. The next prime is 12200133223. The reversal of 12200133221 is 12233100221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12200133221 - 22 = 12200133217 is a prime.

It is a super-2 number, since 2×122001332212 (a number of 21 digits) contains 22 as substring.

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 12200133221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12200133223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3563495 + ... + 3566916.

It is an arithmetic number, because the mean of its divisors is an integer number (1604342700).

Almost surely, 212200133221 is an apocalyptic number.

It is an amenable number.

12200133221 is a deficient number, since it is larger than the sum of its proper divisors (634608379).

12200133221 is an equidigital number, since it uses as much as digits as its factorization.

12200133221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7130499.

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

Adding to 12200133221 its reverse (12233100221), we get a palindrome (24433233442).

The spelling of 12200133221 in words is "twelve billion, two hundred million, one hundred thirty-three thousand, two hundred twenty-one".

Divisors: 1 29 59 1711 7130411 206781919 420694249 12200133221