40221126193 has 2 divisors, whose sum is σ = 40221126194. Its totient is φ = 40221126192.

The previous prime is 40221126167. The next prime is 40221126233. The reversal of 40221126193 is 39162112204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32864976369 + 7356149824 = 181287^2 + 85768^2 .

It is a cyclic number.

It is not a de Polignac number, because 40221126193 - 2¹³ = 40221118001 is a prime.

It is not a weakly prime, because it can be changed into another prime (40221126133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20110563096 + 20110563097.

It is an arithmetic number, because the mean of its divisors is an integer number (20110563097).

Almost surely, 2^40221126193 is an apocalyptic number.

It is an amenable number.

40221126193 is a deficient number, since it is larger than the sum of its proper divisors (1).

40221126193 is an equidigital number, since it uses as much as digits as its factorization.

40221126193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 31.

Adding to 40221126193 its reverse (39162112204), we get a palindrome (79383238397).

The spelling of 40221126193 in words is "forty billion, two hundred twenty-one million, one hundred twenty-six thousand, one hundred ninety-three".