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22210222223 = 73172888889
BaseRepresentation
bin10100101011110101…
…010001100010001111
32010022212110012011002
4110223311101202033
5330441304102343
614111522050515
71414250526320
oct245365214217
963285405132
1022210222223
119468100762
12437a1a9a3b
13212c578037
141109a64447
1589ed068b8
hex52bd5188f

22210222223 has 4 divisors (see below), whose sum is σ = 25383111120. Its totient is φ = 19037333328.

The previous prime is 22210222213. The next prime is 22210222231. The reversal of 22210222223 is 32222201222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22210222223 - 212 = 22210218127 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22210222195 and 22210222204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22210222213) 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, 1586444438 + ... + 1586444451.

It is an arithmetic number, because the mean of its divisors is an integer number (6345777780).

Almost surely, 222210222223 is an apocalyptic number.

22210222223 is a deficient number, since it is larger than the sum of its proper divisors (3172888897).

22210222223 is an equidigital number, since it uses as much as digits as its factorization.

22210222223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3172888896.

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 22210222223 its reverse (32222201222), we get a palindrome (54432423445).

The spelling of 22210222223 in words is "twenty-two billion, two hundred ten million, two hundred twenty-two thousand, two hundred twenty-three".

Divisors: 1 7 3172888889 22210222223