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22222231123 is a prime number
BaseRepresentation
bin10100101100100011…
…000101011001010011
32010100201001022021011
4110230203011121103
5331002342343443
614113031311351
71414454563561
oct245443053123
963321038234
1022222231123
119473963174
12438221b557
132131bc10b1
14110b4aca31
158a0dc9b9d
hex52c8c5653

22222231123 has 2 divisors, whose sum is σ = 22222231124. Its totient is φ = 22222231122.

The previous prime is 22222231093. The next prime is 22222231181. The reversal of 22222231123 is 32113222222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22222231123 - 25 = 22222231091 is a prime.

It is a super-2 number, since 2×222222311232 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22222231094 and 22222231103.

It is not a weakly prime, because it can be changed into another prime (22222231183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11111115561 + 11111115562.

It is an arithmetic number, because the mean of its divisors is an integer number (11111115562).

Almost surely, 222222231123 is an apocalyptic number.

22222231123 is a deficient number, since it is larger than the sum of its proper divisors (1).

22222231123 is an equidigital number, since it uses as much as digits as its factorization.

22222231123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1152, while the sum is 22.

Adding to 22222231123 its reverse (32113222222), we get a palindrome (54335453345).

The spelling of 22222231123 in words is "twenty-two billion, two hundred twenty-two million, two hundred thirty-one thousand, one hundred twenty-three".