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110401221 = 375257201
BaseRepresentation
bin1101001010010…
…01011011000101
321200201222000010
412211021123011
5211230314341
614542140433
72510252310
oct645113305
9250658003
10110401221
1157356087
1230b81719
1319b45b88
141093b977
159a5b716
hex69496c5

110401221 has 8 divisors (see below), whose sum is σ = 168230464. Its totient is φ = 63086400.

The previous prime is 110401183. The next prime is 110401243. The reversal of 110401221 is 122104011.

It is a happy number.

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

It is not a de Polignac number, because 110401221 - 210 = 110400197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110401197 and 110401206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110401121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2628580 + ... + 2628621.

It is an arithmetic number, because the mean of its divisors is an integer number (21028808).

Almost surely, 2110401221 is an apocalyptic number.

It is an amenable number.

110401221 is a deficient number, since it is larger than the sum of its proper divisors (57829243).

110401221 is an equidigital number, since it uses as much as digits as its factorization.

110401221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5257211.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 110401221 is about 10507.1985324348. The cubic root of 110401221 is about 479.7238298500.

Adding to 110401221 its reverse (122104011), we get a palindrome (232505232).

The spelling of 110401221 in words is "one hundred ten million, four hundred one thousand, two hundred twenty-one".

Divisors: 1 3 7 21 5257201 15771603 36800407 110401221