40022220001 has 2 divisors, whose sum is σ = 40022220002. Its totient is φ = 40022220000.

The previous prime is 40022219999. The next prime is 40022220011. The reversal of 40022220001 is 10002222004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33837970401 + 6184249600 = 183951^2 + 78640^2 .

It is a cyclic number.

It is not a de Polignac number, because 40022220001 - 2¹ = 40022219999 is a prime.

Together with 40022219999, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (40022220011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20011110000 + 20011110001.

It is an arithmetic number, because the mean of its divisors is an integer number (20011110001).

Almost surely, 2^40022220001 is an apocalyptic number.

It is an amenable number.

40022220001 is a deficient number, since it is larger than the sum of its proper divisors (1).

40022220001 is an equidigital number, since it uses as much as digits as its factorization.

40022220001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 40022220001 its reverse (10002222004), we get a palindrome (50024442005).

The spelling of 40022220001 in words is "forty billion, twenty-two million, two hundred twenty thousand, one".