22011043 has 2 divisors, whose sum is σ = 22011044. Its totient is φ = 22011042.

The previous prime is 22011037. The next prime is 22011047. The reversal of 22011043 is 34011022.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22011043 is a prime.

It is not a weakly prime, because it can be changed into another prime (22011047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11005521 + 11005522.

It is an arithmetic number, because the mean of its divisors is an integer number (11005522).

Almost surely, 2^22011043 is an apocalyptic number.

22011043 is a deficient number, since it is larger than the sum of its proper divisors (1).

22011043 is an equidigital number, since it uses as much as digits as its factorization.

22011043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 22011043 is about 4691.5927998922. The cubic root of 22011043 is about 280.2508084359.

Adding to 22011043 its reverse (34011022), we get a palindrome (56022065).

The spelling of 22011043 in words is "twenty-two million, eleven thousand, forty-three".