41002120221 has 16 divisors (see below), whose sum is σ = 55498923648. Its totient is φ = 26920857600.

The previous prime is 41002120219. The next prime is 41002120223. The reversal of 41002120221 is 12202120014.

It is an interprime number because it is at equal distance from previous prime (41002120219) and next prime (41002120223).

It is not a de Polignac number, because 41002120221 - 2¹ = 41002120219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 41002120221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41002120223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96861 + ... + 302301.

It is an arithmetic number, because the mean of its divisors is an integer number (3468682728).

Almost surely, 2^41002120221 is an apocalyptic number.

It is an amenable number.

41002120221 is a deficient number, since it is larger than the sum of its proper divisors (14496803427).

41002120221 is a wasteful number, since it uses less digits than its factorization.

41002120221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206452.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 41002120221 its reverse (12202120014), we get a palindrome (53204240235).

The spelling of 41002120221 in words is "forty-one billion, two million, one hundred twenty thousand, two hundred twenty-one".