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12211112221202 = 26151992611951
BaseRepresentation
bin1011000110110001111100…
…0000011001101000010010
31121020101000101222010002002
42301230133000121220102
53100031324212034302
641545412453354002
72400136513204616
oct261543700315022
947211011863062
1012211112221202
113988781562294
121452718938902
136a766cc6877b
14303041823346
1516298bbeec02
hexb1b1f019a12

12211112221202 has 8 divisors (see below), whose sum is σ = 18319646186112. Its totient is φ = 6104563492500.

The previous prime is 12211112221193. The next prime is 12211112221207. The reversal of 12211112221202 is 20212221111221.

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

It is a super-2 number, since 2×122111122212022 (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12211112221207) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 496293674 + ... + 496318277.

It is an arithmetic number, because the mean of its divisors is an integer number (2289955773264).

Almost surely, 212211112221202 is an apocalyptic number.

12211112221202 is a deficient number, since it is larger than the sum of its proper divisors (6108533964910).

12211112221202 is an equidigital number, since it uses as much as digits as its factorization.

12211112221202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 992618104.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 12211112221202 its reverse (20212221111221), we get a palindrome (32423333332423).

The spelling of 12211112221202 in words is "twelve trillion, two hundred eleven billion, one hundred twelve million, two hundred twenty-one thousand, two hundred two".

Divisors: 1 2 6151 12302 992611951 1985223902 6105556110601 12211112221202