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12211113332 = 2211225229573
BaseRepresentation
bin10110101111101011…
…01100110101110100
31011112000100211101202
423113311230311310
5200002021111312
65335410312032
7611413515335
oct132765546564
934460324352
1012211113332
1151a6945200
122449588618
1311c7b10362
1483ba9428c
154b70729c2
hex2d7d6cd74

12211113332 has 18 divisors (see below), whose sum is σ = 23488733394. Its totient is φ = 5550505840.

The previous prime is 12211113323. The next prime is 12211113337. The reversal of 12211113332 is 23331111221.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 10496822116 + 1714291216 = 102454^2 + 41404^2 .

It is a super-2 number, since 2×122111133322 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12211113337) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12614303 + ... + 12615270.

It is an arithmetic number, because the mean of its divisors is an integer number (1304929633).

Almost surely, 212211113332 is an apocalyptic number.

It is an amenable number.

12211113332 is a deficient number, since it is larger than the sum of its proper divisors (11277620062).

12211113332 is a wasteful number, since it uses less digits than its factorization.

12211113332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25229599 (or 25229586 counting only the distinct ones).

The product of its digits is 216, while the sum is 20.

Adding to 12211113332 its reverse (23331111221), we get a palindrome (35542224553).

The spelling of 12211113332 in words is "twelve billion, two hundred eleven million, one hundred thirteen thousand, three hundred thirty-two".

Divisors: 1 2 4 11 22 44 121 242 484 25229573 50459146 100918292 277525303 555050606 1110101212 3052778333 6105556666 12211113332