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11112213101 = 116191631989
BaseRepresentation
bin10100101100101011…
…01110101001101101
31001200102120220200012
422112111232221231
5140224211304401
65034353143005
7542241152513
oct122625565155
931612526605
1011112213101
1147926111a0
1221a155aa65
131081256132
14775b604b3
154508578bb
hex29656ea6d

11112213101 has 8 divisors (see below), whose sum is σ = 12142005600. Its totient is φ = 10085685840.

The previous prime is 11112213083. The next prime is 11112213131. The reversal of 11112213101 is 10131221111.

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

It is a cyclic number.

It is not a de Polignac number, because 11112213101 - 226 = 11045104237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11112213131) 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 7 ways as a sum of consecutive naturals, for example, 809186 + ... + 822803.

It is an arithmetic number, because the mean of its divisors is an integer number (1517750700).

Almost surely, 211112213101 is an apocalyptic number.

11112213101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11112213101 is a deficient number, since it is larger than the sum of its proper divisors (1029792499).

11112213101 is a wasteful number, since it uses less digits than its factorization.

11112213101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1632619.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 11112213101 its reverse (10131221111), we get a palindrome (21243434212).

The spelling of 11112213101 in words is "eleven billion, one hundred twelve million, two hundred thirteen thousand, one hundred one".

Divisors: 1 11 619 6809 1631989 17951879 1010201191 11112213101