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12021312213202 = 231428945206839
BaseRepresentation
bin1010111011101110111000…
…0010110101000011010010
31120120020002220202201011011
42232323232002311003102
53033424121411310302
641322303052441134
72350340215564615
oct256735602650322
946506086681134
1012021312213202
113915234393046
1214219891791aa
136927b2bba526
142d7b9828417c
1515ca7de905d7
hexaeeee0b50d2

12021312213202 has 16 divisors (see below), whose sum is σ = 18617984985600. Its totient is φ = 5815407640320.

The previous prime is 12021312213167. The next prime is 12021312213203. The reversal of 12021312213202 is 20231221312021.

It is not an unprimeable number, because it can be changed into a prime (12021312213203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22337502 + ... + 22869337.

It is an arithmetic number, because the mean of its divisors is an integer number (1163624061600).

Almost surely, 212021312213202 is an apocalyptic number.

12021312213202 is a deficient number, since it is larger than the sum of its proper divisors (6596672772398).

12021312213202 is a wasteful number, since it uses less digits than its factorization.

12021312213202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45211161.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 12021312213202 its reverse (20231221312021), we get a palindrome (32252533525223).

The spelling of 12021312213202 in words is "twelve trillion, twenty-one billion, three hundred twelve million, two hundred thirteen thousand, two hundred two".

Divisors: 1 2 31 62 4289 8578 132959 265918 45206839 90413678 1401412009 2802824018 193892132471 387784264942 6010656106601 12021312213202