2111222441 has 2 divisors, whose sum is σ = 2111222442. Its totient is φ = 2111222440.

The previous prime is 2111222437. The next prime is 2111222453. The reversal of 2111222441 is 1442221112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2053902400 + 57320041 = 45320^2 + 7571^2 .

It is a cyclic number.

It is not a de Polignac number, because 2111222441 - 2² = 2111222437 is a prime.

It is not a weakly prime, because it can be changed into another prime (2111222431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055611220 + 1055611221.

It is an arithmetic number, because the mean of its divisors is an integer number (1055611221).

Almost surely, 2^2111222441 is an apocalyptic number.

It is an amenable number.

2111222441 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111222441 is an equidigital number, since it uses as much as digits as its factorization.

2111222441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 256, while the sum is 20.

The square root of 2111222441 is about 45948.0406655170. The cubic root of 2111222441 is about 1282.8562601978.

Adding to 2111222441 its reverse (1442221112), we get a palindrome (3553443553).

The spelling of 2111222441 in words is "two billion, one hundred eleven million, two hundred twenty-two thousand, four hundred forty-one".