41556022221 has 16 divisors (see below), whose sum is σ = 63343583744. Its totient is φ = 23738752944.

The previous prime is 41556022213. The next prime is 41556022229. The reversal of 41556022221 is 12222065514.

It is an interprime number because it is at equal distance from previous prime (41556022213) and next prime (41556022229).

It is not a de Polignac number, because 41556022221 - 2³ = 41556022213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41556022229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 246391 + ... + 379236.

It is an arithmetic number, because the mean of its divisors is an integer number (3958973984).

Almost surely, 2^41556022221 is an apocalyptic number.

It is an amenable number.

41556022221 is a deficient number, since it is larger than the sum of its proper divisors (21787561523).

41556022221 is a wasteful number, since it uses less digits than its factorization.

41556022221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628800.

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 41556022221 its reverse (12222065514), we get a palindrome (53778087735).

The spelling of 41556022221 in words is "forty-one billion, five hundred fifty-six million, twenty-two thousand, two hundred twenty-one".