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12219421289 = 471731502819
BaseRepresentation
bin10110110000101010…
…11001001001101001
31011112120222220202212
423120111121021221
5200011132440124
65340304334505
7611544236645
oct133025311151
934476886685
1012219421289
1152005aa089
122450314435
1311c975b9ca
1483cc17c25
154b7b6440e
hex2d8559269

12219421289 has 8 divisors (see below), whose sum is σ = 12551552640. Its totient is φ = 11890296016.

The previous prime is 12219421283. The next prime is 12219421297. The reversal of 12219421289 is 98212491221.

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

It is a cyclic number.

It is not a de Polignac number, because 12219421289 - 228 = 11950985833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12219421283) 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, 743279 + ... + 759540.

It is an arithmetic number, because the mean of its divisors is an integer number (1568944080).

Almost surely, 212219421289 is an apocalyptic number.

It is an amenable number.

12219421289 is a deficient number, since it is larger than the sum of its proper divisors (332131351).

12219421289 is a wasteful number, since it uses less digits than its factorization.

12219421289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1503039.

The product of its digits is 41472, while the sum is 41.

The spelling of 12219421289 in words is "twelve billion, two hundred nineteen million, four hundred twenty-one thousand, two hundred eighty-nine".

Divisors: 1 47 173 8131 1502819 70632493 259987687 12219421289