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12111222100210 = 251211122210021
BaseRepresentation
bin1011000000111101110100…
…0101110101000011110010
31120212211011220002012111021
42300033131011311003302
53041412240324201320
641431452453410054
72360002242165232
oct260173505650362
946784156065437
1012111222100210
11394a382155992
12143729b93992a
1369b11114b2bc
142dc287205cc2
1516009246bdaa
hexb03dd1750f2

12111222100210 has 8 divisors (see below), whose sum is σ = 21800199780396. Its totient is φ = 4844488840080.

The previous prime is 12111222100189. The next prime is 12111222100213. The reversal of 12111222100210 is 1200122211121.

12111222100210 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 9971909255889 + 2139312844321 = 3157833^2 + 1462639^2 .

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

It is not an unprimeable number, because it can be changed into a prime (12111222100213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 605561105001 + ... + 605561105020.

Almost surely, 212111222100210 is an apocalyptic number.

12111222100210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12111222100210 is a deficient number, since it is larger than the sum of its proper divisors (9688977680186).

12111222100210 is a wasteful number, since it uses less digits than its factorization.

12111222100210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1211122210028.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12111222100210 its reverse (1200122211121), we get a palindrome (13311344311331).

The spelling of 12111222100210 in words is "twelve trillion, one hundred eleven billion, two hundred twenty-two million, one hundred thousand, two hundred ten".

Divisors: 1 2 5 10 1211122210021 2422244420042 6055611050105 12111222100210