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11223322021 = 171934747127
BaseRepresentation
bin10100111001111011…
…00100110110100101
31001222011122211110101
422130331210312211
5140441132301041
65053402424101
7545060443312
oct123475446645
931864584411
1011223322021
11483a2aaa4a
122212802031
13109b289162
14786803d09
1545a4a3b31
hex29cf64da5

11223322021 has 8 divisors (see below), whose sum is σ = 12508966080. Its totient is φ = 10007172288.

The previous prime is 11223322009. The next prime is 11223322031. The reversal of 11223322021 is 12022332211.

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 11223322021 - 211 = 11223319973 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11223322021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11223322031) 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, 17373241 + ... + 17373886.

It is an arithmetic number, because the mean of its divisors is an integer number (1563620760).

Almost surely, 211223322021 is an apocalyptic number.

It is an amenable number.

11223322021 is a deficient number, since it is larger than the sum of its proper divisors (1285644059).

11223322021 is a wasteful number, since it uses less digits than its factorization.

11223322021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34747163.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 11223322021 its reverse (12022332211), we get a palindrome (23245654232).

The spelling of 11223322021 in words is "eleven billion, two hundred twenty-three million, three hundred twenty-two thousand, twenty-one".

Divisors: 1 17 19 323 34747127 590701159 660195413 11223322021