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12002211212 = 224763841549
BaseRepresentation
bin10110010110110001…
…10011010110001100
31010222110021111120012
423023120303112030
5144040031224322
65302545012352
7603266053265
oct131330632614
933873244505
1012002211212
1150a9a31a22
1223ab6240b8
13119375a134
1481c03596c
154a3a5aae2
hex2cb63358c

12002211212 has 12 divisors (see below), whose sum is σ = 21450760800. Its totient is φ = 5873422416.

The previous prime is 12002211203. The next prime is 12002211217. The reversal of 12002211212 is 21211220021.

12002211212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12002211217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31920587 + ... + 31920962.

It is an arithmetic number, because the mean of its divisors is an integer number (1787563400).

Almost surely, 212002211212 is an apocalyptic number.

It is an amenable number.

12002211212 is a deficient number, since it is larger than the sum of its proper divisors (9448549588).

12002211212 is a wasteful number, since it uses less digits than its factorization.

12002211212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63841600 (or 63841598 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12002211212 its reverse (21211220021), we get a palindrome (33213431233).

The spelling of 12002211212 in words is "twelve billion, two million, two hundred eleven thousand, two hundred twelve".

Divisors: 1 2 4 47 94 188 63841549 127683098 255366196 3000552803 6001105606 12002211212