2423111221 has 2 divisors, whose sum is σ = 2423111222. Its totient is φ = 2423111220.

The previous prime is 2423111177. The next prime is 2423111231. The reversal of 2423111221 is 1221113242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1748410596 + 674700625 = 41814^2 + 25975^2 .

It is a cyclic number.

It is not a de Polignac number, because 2423111221 - 2¹³ = 2423103029 is a prime.

It is a super-2 number, since 2×2423111221² = 11742935978672221682, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2423111231) 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 as a sum of consecutive naturals, namely, 1211555610 + 1211555611.

It is an arithmetic number, because the mean of its divisors is an integer number (1211555611).

Almost surely, 2^2423111221 is an apocalyptic number.

It is an amenable number.

2423111221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2423111221 is an equidigital number, since it uses as much as digits as its factorization.

2423111221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 192, while the sum is 19.

The square root of 2423111221 is about 49225.1076281200. The cubic root of 2423111221 is about 1343.1497932975.

Adding to 2423111221 its reverse (1221113242), we get a palindrome (3644224463).

The spelling of 2423111221 in words is "two billion, four hundred twenty-three million, one hundred eleven thousand, two hundred twenty-one".