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12263671221 = 315972559731
BaseRepresentation
bin10110110101111100…
…01100010110110101
31011122200021001021020
423122332030112311
5200103444434341
65344525011353
7612622325334
oct133276142665
934580231236
1012263671221
11522358277a
1224630b3b59
131205982ab9
14844a55d1b
154bb9a5566
hex2daf8c5b5

12263671221 has 8 divisors (see below), whose sum is σ = 16361806944. Its totient is φ = 8170658160.

The previous prime is 12263671193. The next prime is 12263671249. The reversal of 12263671221 is 12217636221.

It is an interprime number because it is at equal distance from previous prime (12263671193) and next prime (12263671249).

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

It is a de Polignac number, because none of the positive numbers 2k-12263671221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12263671271) 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, 1275075 + ... + 1284656.

It is an arithmetic number, because the mean of its divisors is an integer number (2045225868).

Almost surely, 212263671221 is an apocalyptic number.

It is an amenable number.

12263671221 is a deficient number, since it is larger than the sum of its proper divisors (4098135723).

12263671221 is a wasteful number, since it uses less digits than its factorization.

12263671221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2561331.

The product of its digits is 12096, while the sum is 33.

The spelling of 12263671221 in words is "twelve billion, two hundred sixty-three million, six hundred seventy-one thousand, two hundred twenty-one".

Divisors: 1 3 1597 4791 2559731 7679193 4087890407 12263671221