40550333313221 has 2 divisors, whose sum is σ = 40550333313222. Its totient is φ = 40550333313220.

The previous prime is 40550333313179. The next prime is 40550333313233. The reversal of 40550333313221 is 12231333305504.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36004632148996 + 4545701164225 = 6000386^2 + 2132065^2 .

It is a cyclic number.

It is not a de Polignac number, because 40550333313221 - 2³⁰ = 40549259571397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40550333313251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20275166656610 + 20275166656611.

It is an arithmetic number, because the mean of its divisors is an integer number (20275166656611).

Almost surely, 2^{40550333313221} is an apocalyptic number.

It is an amenable number.

40550333313221 is a deficient number, since it is larger than the sum of its proper divisors (1).

40550333313221 is an equidigital number, since it uses as much as digits as its factorization.

40550333313221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 97200, while the sum is 35.

Adding to 40550333313221 its reverse (12231333305504), we get a palindrome (52781666618725).

The spelling of 40550333313221 in words is "forty trillion, five hundred fifty billion, three hundred thirty-three million, three hundred thirteen thousand, two hundred twenty-one".