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11221000223 = 15771471339
BaseRepresentation
bin10100111001101001…
…01110000000011111
31001222000021212112212
422130310232000133
5140440034001343
65053240551035
7545031633236
oct123464560037
931860255485
1011221000223
114838a64604
122211a8247b
13109a955404
1478639bb1d
1545a195c18
hex29cd2e01f

11221000223 has 4 divisors (see below), whose sum is σ = 11292471720. Its totient is φ = 11149528728.

The previous prime is 11221000211. The next prime is 11221000237. The reversal of 11221000223 is 32200012211.

It is a happy number.

11221000223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32200012211 = 53036072037.

It is a cyclic number.

It is not a de Polignac number, because 11221000223 - 218 = 11220738079 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11221000198 and 11221000207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11221000243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35735513 + ... + 35735826.

It is an arithmetic number, because the mean of its divisors is an integer number (2823117930).

Almost surely, 211221000223 is an apocalyptic number.

11221000223 is a deficient number, since it is larger than the sum of its proper divisors (71471497).

11221000223 is an equidigital number, since it uses as much as digits as its factorization.

11221000223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71471496.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 11221000223 its reverse (32200012211), we get a palindrome (43421012434).

The spelling of 11221000223 in words is "eleven billion, two hundred twenty-one million, two hundred twenty-three", and thus it is an aban number.

Divisors: 1 157 71471339 11221000223