741171620221 has 2 divisors, whose sum is σ = 741171620222. Its totient is φ = 741171620220.

The previous prime is 741171620153. The next prime is 741171620243. The reversal of 741171620221 is 122026171147.

741171620221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 473350880025 + 267820740196 = 688005^2 + 517514^2 .

It is a cyclic number.

It is not a de Polignac number, because 741171620221 - 2⁹ = 741171619709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (741171620621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 370585810110 + 370585810111.

It is an arithmetic number, because the mean of its divisors is an integer number (370585810111).

Almost surely, 2^741171620221 is an apocalyptic number.

It is an amenable number.

741171620221 is a deficient number, since it is larger than the sum of its proper divisors (1).

741171620221 is an equidigital number, since it uses as much as digits as its factorization.

741171620221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9408, while the sum is 34.

Adding to 741171620221 its reverse (122026171147), we get a palindrome (863197791368).

The spelling of 741171620221 in words is "seven hundred forty-one billion, one hundred seventy-one million, six hundred twenty thousand, two hundred twenty-one".