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12201201254 = 2112461109367
BaseRepresentation
bin10110101110011111…
…11000111001100110
31011111022201020120202
423113033320321212
5144442001420004
65334414030502
7611233333214
oct132717707146
934438636522
1012201201254
1151a1295100
1224461a8432
1311c5a4c818
1483a633cb4
154b6265b1e
hex2d73f8e66

12201201254 has 24 divisors (see below), whose sum is σ = 20160678384. Its totient is φ = 5533919600.

The previous prime is 12201201241. The next prime is 12201201263. The reversal of 12201201254 is 45210210221.

It is a super-2 number, since 2×122012012542 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56879 + ... + 166245.

It is an arithmetic number, because the mean of its divisors is an integer number (840028266).

Almost surely, 212201201254 is an apocalyptic number.

12201201254 is a deficient number, since it is larger than the sum of its proper divisors (7959477130).

12201201254 is a wasteful number, since it uses less digits than its factorization.

12201201254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109852 (or 109841 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

Adding to 12201201254 its reverse (45210210221), we get a palindrome (57411411475).

The spelling of 12201201254 in words is "twelve billion, two hundred one million, two hundred one thousand, two hundred fifty-four".

Divisors: 1 2 11 22 121 242 461 922 5071 10142 55781 109367 111562 218734 1203037 2406074 13233407 26466814 50418187 100836374 554600057 1109200114 6100600627 12201201254