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110122221 = 3112303367
BaseRepresentation
bin1101001000001…
…01010011101101
321200012210021210
412210011103231
5211142402341
614532145033
72505011016
oct644052355
9250183253
10110122221
1157185500
1230a68179
1319a78ba1
14108a800d
159a03c16
hex69054ed

110122221 has 12 divisors (see below), whose sum is σ = 161391776. Its totient is φ = 66740520.

The previous prime is 110122213. The next prime is 110122223. The reversal of 110122221 is 122221011.

It is not a de Polignac number, because 110122221 - 23 = 110122213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110122197 and 110122206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110122223) 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 11 ways as a sum of consecutive naturals, for example, 151321 + ... + 152046.

Almost surely, 2110122221 is an apocalyptic number.

110122221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

110122221 is a deficient number, since it is larger than the sum of its proper divisors (51269555).

110122221 is a wasteful number, since it uses less digits than its factorization.

110122221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303392 (or 303381 counting only the distinct ones).

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

The square root of 110122221 is about 10493.9135216563. The cubic root of 110122221 is about 479.3193782423.

Adding to 110122221 its reverse (122221011), we get a palindrome (232343232).

The spelling of 110122221 in words is "one hundred ten million, one hundred twenty-two thousand, two hundred twenty-one".

Divisors: 1 3 11 33 121 363 303367 910101 3337037 10011111 36707407 110122221