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12210443130221 = 761131026727793
BaseRepresentation
bin1011000110101111011100…
…1000000001010101101101
31121020022021202221202210122
42301223313020001111231
53100023441420131341
641545222232414325
72400114110056220
oct261536710012555
947208252852718
1012210443130221
113988468904336
1214525708473a5
136a759445c04b
14302dbaa135b7
1516294d0d594b
hexb1af720156d

12210443130221 has 16 divisors (see below), whose sum is σ = 13958936594304. Its totient is φ = 10462986307584.

The previous prime is 12210443130107. The next prime is 12210443130233. The reversal of 12210443130221 is 12203134401221.

It is a happy number.

12210443130221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12210443130221 - 238 = 11935565223277 is a prime.

It is a super-2 number, since 2×122104431302212 (a number of 27 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 (12210443135221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 439321301 + ... + 439349093.

It is an arithmetic number, because the mean of its divisors is an integer number (872433537144).

Almost surely, 212210443130221 is an apocalyptic number.

It is an amenable number.

12210443130221 is a deficient number, since it is larger than the sum of its proper divisors (1748493464083).

12210443130221 is a wasteful number, since it uses less digits than its factorization.

12210443130221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44180.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 12210443130221 its reverse (12203134401221), we get a palindrome (24413577531442).

The spelling of 12210443130221 in words is "twelve trillion, two hundred ten billion, four hundred forty-three million, one hundred thirty thousand, two hundred twenty-one".

Divisors: 1 7 6113 10267 27793 42791 71869 194551 62762171 169898609 285350731 439335197 1189290263 1997455117 1744349018603 12210443130221