2211242123 has 2 divisors, whose sum is σ = 2211242124. Its totient is φ = 2211242122.

The previous prime is 2211242107. The next prime is 2211242171. The reversal of 2211242123 is 3212421122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2211242123 - 2⁴ = 2211242107 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2211242095 and 2211242104.

It is not a weakly prime, because it can be changed into another prime (2211242623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1105621061 + 1105621062.

It is an arithmetic number, because the mean of its divisors is an integer number (1105621062).

Almost surely, 2^2211242123 is an apocalyptic number.

2211242123 is a deficient number, since it is larger than the sum of its proper divisors (1).

2211242123 is an equidigital number, since it uses as much as digits as its factorization.

2211242123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 384, while the sum is 20.

The square root of 2211242123 is about 47023.8463229030. The cubic root of 2211242123 is about 1302.8030489842.

Adding to 2211242123 its reverse (3212421122), we get a palindrome (5423663245).

The spelling of 2211242123 in words is "two billion, two hundred eleven million, two hundred forty-two thousand, one hundred twenty-three".