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112220212 = 22132158081
BaseRepresentation
bin1101011000001…
…01100000110100
321211011101012011
412230011200310
5212212021322
615045134004
72531566426
oct654054064
9254141164
10112220212
1158388785
12316ba304
131a331ac0
1410c92816
159cba677
hex6b05834

112220212 has 12 divisors (see below), whose sum is σ = 211492036. Its totient is φ = 51793920.

The previous prime is 112220201. The next prime is 112220231. The reversal of 112220212 is 212022211.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 13734436 + 98485776 = 3706^2 + 9924^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 112220192 and 112220201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1078989 + ... + 1079092.

Almost surely, 2112220212 is an apocalyptic number.

It is an amenable number.

112220212 is a deficient number, since it is larger than the sum of its proper divisors (99271824).

112220212 is a wasteful number, since it uses less digits than its factorization.

112220212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2158098 (or 2158096 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 112220212 is about 10593.4041742964. The cubic root of 112220212 is about 482.3441640154.

Adding to 112220212 its reverse (212022211), we get a palindrome (324242423).

The spelling of 112220212 in words is "one hundred twelve million, two hundred twenty thousand, two hundred twelve".

Divisors: 1 2 4 13 26 52 2158081 4316162 8632324 28055053 56110106 112220212