40221126109 has 2 divisors, whose sum is σ = 40221126110. Its totient is φ = 40221126108.

The previous prime is 40221126073. The next prime is 40221126133. The reversal of 40221126109 is 90162112204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36645444900 + 3575681209 = 191430^2 + 59797^2 .

It is a cyclic number.

It is not a de Polignac number, because 40221126109 - 2¹¹ = 40221124061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40221120109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20110563054 + 20110563055.

It is an arithmetic number, because the mean of its divisors is an integer number (20110563055).

Almost surely, 2^40221126109 is an apocalyptic number.

It is an amenable number.

40221126109 is a deficient number, since it is larger than the sum of its proper divisors (1).

40221126109 is an equidigital number, since it uses as much as digits as its factorization.

40221126109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 28.

The spelling of 40221126109 in words is "forty billion, two hundred twenty-one million, one hundred twenty-six thousand, one hundred nine".