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12001201222 = 239738473929
BaseRepresentation
bin10110010110101001…
…11100110001000110
31010222101101012010011
423023110330301012
5144034301414342
65302511220434
7603254345563
oct131324746106
933871335104
1012001201222
1150a940211a
1223ab21771a
1311934954ca
1481bc5186a
154a390b717
hex2cb53cc46

12001201222 has 16 divisors (see below), whose sum is σ = 18056432160. Its totient is φ = 5982406848.

The previous prime is 12001201189. The next prime is 12001201231. The reversal of 12001201222 is 22210210021.

It is a happy number.

12001201222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3052554 + ... + 3056482.

It is an arithmetic number, because the mean of its divisors is an integer number (1128527010).

Almost surely, 212001201222 is an apocalyptic number.

12001201222 is a deficient number, since it is larger than the sum of its proper divisors (6055230938).

12001201222 is a wasteful number, since it uses less digits than its factorization.

12001201222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8175.

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

Adding to 12001201222 its reverse (22210210021), we get a palindrome (34211411243).

The spelling of 12001201222 in words is "twelve billion, one million, two hundred one thousand, two hundred twenty-two".

Divisors: 1 2 397 794 3847 3929 7694 7858 1527259 1559813 3054518 3119626 15114863 30229726 6000600611 12001201222