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12221201020222 = 213943961154749
BaseRepresentation
bin1011000111010111100001…
…0110000111010100111110
31121021100001111211012120001
42301311320112013110332
53100213004430121342
641554201531344514
72400644516451055
oct261657026072476
947240044735501
1012221201020222
113991a89408317
1214546735b213a
136a85ba17732c
1430371b69d39c
15162d7c79d8b7
hexb1d7858753e

12221201020222 has 8 divisors (see below), whose sum is σ = 18463684995000. Its totient is φ = 6066639355224.

The previous prime is 12221201020201. The next prime is 12221201020229. The reversal of 12221201020222 is 22202010212221.

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

It is a self number, because there is not a number n which added to its sum of digits gives 12221201020222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221201020229) 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, 21980577097 + ... + 21980577652.

It is an arithmetic number, because the mean of its divisors is an integer number (2307960624375).

Almost surely, 212221201020222 is an apocalyptic number.

12221201020222 is a deficient number, since it is larger than the sum of its proper divisors (6242483974778).

12221201020222 is a wasteful number, since it uses less digits than its factorization.

12221201020222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43961154890.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 12221201020222 its reverse (22202010212221), we get a palindrome (34423211232443).

The spelling of 12221201020222 in words is "twelve trillion, two hundred twenty-one billion, two hundred one million, twenty thousand, two hundred twenty-two".

Divisors: 1 2 139 278 43961154749 87922309498 6110600510111 12221201020222