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1222233223 = 2110157923
BaseRepresentation
bin100100011011001…
…1100110010000111
310011011211212210011
41020312130302013
510000342430343
6321140411051
742200545111
oct11066346207
93134755704
101222233223
11577a11a02
122a13a6a87
131662aa233
14b847a3b1
157247d29d
hex48d9cc87

1222233223 has 4 divisors (see below), whose sum is σ = 1222312248. Its totient is φ = 1222154200.

The previous prime is 1222233209. The next prime is 1222233251. The reversal of 1222233223 is 3223322221.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1222233223 - 25 = 1222233191 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1222233194 and 1222233203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222233283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7861 + ... + 50062.

It is an arithmetic number, because the mean of its divisors is an integer number (305578062).

Almost surely, 21222233223 is an apocalyptic number.

1222233223 is a deficient number, since it is larger than the sum of its proper divisors (79025).

1222233223 is an equidigital number, since it uses as much as digits as its factorization.

1222233223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79024.

The product of its digits is 1728, while the sum is 22.

The square root of 1222233223 is about 34960.4522711020. The cubic root of 1222233223 is about 1069.1813177501.

Adding to 1222233223 its reverse (3223322221), we get a palindrome (4445555444).

The spelling of 1222233223 in words is "one billion, two hundred twenty-two million, two hundred thirty-three thousand, two hundred twenty-three".

Divisors: 1 21101 57923 1222233223