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12021012202 = 228612100841
BaseRepresentation
bin10110011001000001…
…00001011011101010
31011000202122200200011
423030200201123222
5144104334342302
65304500002134
7603614626543
oct131440413352
934022580604
1012021012202
115109603431
1223b599034a
131197610894
1482072b4ca
154a55215d7
hex2cc8216ea

12021012202 has 8 divisors (see below), whose sum is σ = 18037829412. Its totient is φ = 6008402400.

The previous prime is 12021012193. The next prime is 12021012253. The reversal of 12021012202 is 20221012021.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11096304921 + 924707281 = 105339^2 + 30409^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1044699 + ... + 1056142.

Almost surely, 212021012202 is an apocalyptic number.

12021012202 is a deficient number, since it is larger than the sum of its proper divisors (6016817210).

12021012202 is a wasteful number, since it uses less digits than its factorization.

12021012202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2103704.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 12021012202 its reverse (20221012021), we get a palindrome (32242024223).

The spelling of 12021012202 in words is "twelve billion, twenty-one million, twelve thousand, two hundred two".

Divisors: 1 2 2861 5722 2100841 4201682 6010506101 12021012202