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11112212201210 = 251111221220121
BaseRepresentation
bin1010000110110100001101…
…1101011111111011111010
31110100022120011201010020122
42201231003131133323322
52424030302310414320
635344514012253242
72224554656151101
oct241550335377372
943308504633218
1011112212201210
1135a473210258a
1212b5755471222
13627b53035053
142a5b96491038
151440c2acdd25
hexa1b4375fefa

11112212201210 has 8 divisors (see below), whose sum is σ = 20001981962196. Its totient is φ = 4444884880480.

The previous prime is 11112212201171. The next prime is 11112212201219. The reversal of 11112212201210 is 1210221221111.

It can be written as a sum of positive squares in 2 ways, for example, as 10265571144049 + 846641057161 = 3203993^2 + 920131^2 .

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 (11112212201219) 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, 555610610051 + ... + 555610610070.

Almost surely, 211112212201210 is an apocalyptic number.

11112212201210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11112212201210 is a deficient number, since it is larger than the sum of its proper divisors (8889769760986).

11112212201210 is a wasteful number, since it uses less digits than its factorization.

11112212201210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111221220128.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 11112212201210 its reverse (1210221221111), we get a palindrome (12322433422321).

The spelling of 11112212201210 in words is "eleven trillion, one hundred twelve billion, two hundred twelve million, two hundred one thousand, two hundred ten".

Divisors: 1 2 5 10 1111221220121 2222442440242 5556106100605 11112212201210