40402228001 has 2 divisors, whose sum is σ = 40402228002. Its totient is φ = 40402228000.

The previous prime is 40402227997. The next prime is 40402228019. The reversal of 40402228001 is 10082220404.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31831912225 + 8570315776 = 178415^2 + 92576^2 .

It is a cyclic number.

It is not a de Polignac number, because 40402228001 - 2² = 40402227997 is a prime.

It is not a weakly prime, because it can be changed into another prime (40402228021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20201114000 + 20201114001.

It is an arithmetic number, because the mean of its divisors is an integer number (20201114001).

Almost surely, 2^40402228001 is an apocalyptic number.

It is an amenable number.

40402228001 is a deficient number, since it is larger than the sum of its proper divisors (1).

40402228001 is an equidigital number, since it uses as much as digits as its factorization.

40402228001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 40402228001 its reverse (10082220404), we get a palindrome (50484448405).

The spelling of 40402228001 in words is "forty billion, four hundred two million, two hundred twenty-eight thousand, one".