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12211011202 = 213978148017
BaseRepresentation
bin10110101111101010…
…10011111010000010
31011112000011122022011
423113311103322002
5200002004324302
65335404203134
7611412611515
oct132765237202
934460148264
1012211011202
1151a68854a5
1224495394aa
1311c7aa5a20
1483ba68d7c
154b70525d7
hex2d7d53e82

12211011202 has 16 divisors (see below), whose sum is σ = 19727907192. Its totient is φ = 5635157760.

The previous prime is 12211011193. The next prime is 12211011269. The reversal of 12211011202 is 20211011221.

It can be written as a sum of positive squares in 4 ways, for example, as 5876602281 + 6334408921 = 76659^2 + 79589^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 230298 + ... + 278314.

Almost surely, 212211011202 is an apocalyptic number.

12211011202 is a deficient number, since it is larger than the sum of its proper divisors (7516895990).

12211011202 is a wasteful number, since it uses less digits than its factorization.

12211011202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57813.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12211011202 its reverse (20211011221), we get a palindrome (32422022423).

The spelling of 12211011202 in words is "twelve billion, two hundred eleven million, eleven thousand, two hundred two".

Divisors: 1 2 13 26 9781 19562 48017 96034 127153 254306 624221 1248442 469654277 939308554 6105505601 12211011202