22121204041 has 2 divisors, whose sum is σ = 22121204042. Its totient is φ = 22121204040.

The previous prime is 22121203987. The next prime is 22121204051. The reversal of 22121204041 is 14040212122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11831130441 + 10290073600 = 108771^2 + 101440^2 .

It is a cyclic number.

It is not a de Polignac number, because 22121204041 - 2¹³ = 22121195849 is a prime.

It is not a weakly prime, because it can be changed into another prime (22121204051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11060602020 + 11060602021.

It is an arithmetic number, because the mean of its divisors is an integer number (11060602021).

Almost surely, 2^22121204041 is an apocalyptic number.

It is an amenable number.

22121204041 is a deficient number, since it is larger than the sum of its proper divisors (1).

22121204041 is an equidigital number, since it uses as much as digits as its factorization.

22121204041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 22121204041 its reverse (14040212122), we get a palindrome (36161416163).

The spelling of 22121204041 in words is "twenty-two billion, one hundred twenty-one million, two hundred four thousand, forty-one".