41221612213 has 12 divisors (see below), whose sum is σ = 42191626732. Its totient is φ = 40273390080.

The previous prime is 41221612183. The next prime is 41221612331. The reversal of 41221612213 is 31221612214.

It can be written as a sum of positive squares in 2 ways, for example, as 25521021009 + 15700591204 = 159753^2 + 125302^2 .

It is not a de Polignac number, because 41221612213 - 2²⁹ = 40684741301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41221612613) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1258423 + ... + 1290763.

Almost surely, 2^41221612213 is an apocalyptic number.

It is an amenable number.

41221612213 is a deficient number, since it is larger than the sum of its proper divisors (970014519).

41221612213 is an equidigital number, since it uses as much as digits as its factorization.

41221612213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33012 (or 32965 counting only the distinct ones).

The product of its digits is 1152, while the sum is 25.

Subtracting from 41221612213 its reverse (31221612214), we obtain a palindrome (9999999999).

The spelling of 41221612213 in words is "forty-one billion, two hundred twenty-one million, six hundred twelve thousand, two hundred thirteen".