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12000122210 = 251200012221
BaseRepresentation
bin10110010110100001…
…10101010101100010
31010222022100100222202
423023100311111202
5144034012402320
65302432133202
7603242233016
oct131320652542
933868310882
1012000122210
1150a883547a
1223aa997202
1311931a833b
1481ba50546
154a3796b75
hex2cb435562

12000122210 has 8 divisors (see below), whose sum is σ = 21600219996. Its totient is φ = 4800048880.

The previous prime is 12000122171. The next prime is 12000122219. The reversal of 12000122210 is 1222100021.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11873807089 + 126315121 = 108967^2 + 11239^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 12000122191 and 12000122200.

It is not an unprimeable number, because it can be changed into a prime (12000122219) 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, 600006101 + ... + 600006120.

Almost surely, 212000122210 is an apocalyptic number.

12000122210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12000122210 is a deficient number, since it is larger than the sum of its proper divisors (9600097786).

12000122210 is a wasteful number, since it uses less digits than its factorization.

12000122210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1200012228.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 12000122210 its reverse (1222100021), we get a palindrome (13222222231).

The spelling of 12000122210 in words is "twelve billion, one hundred twenty-two thousand, two hundred ten".

Divisors: 1 2 5 10 1200012221 2400024442 6000061105 12000122210