41221205512 has 8 divisors (see below), whose sum is σ = 77289760350. Its totient is φ = 20610602752.

The previous prime is 41221205483. The next prime is 41221205513. The reversal of 41221205512 is 21550212214.

It can be written as a sum of positive squares in only one way, i.e., 40887266436 + 333939076 = 202206^2 + 18274^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×41221205512³ (a number of 33 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (41221205513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2576325337 + ... + 2576325352.

Almost surely, 2^41221205512 is an apocalyptic number.

It is an amenable number.

41221205512 is a deficient number, since it is larger than the sum of its proper divisors (36068554838).

41221205512 is a wasteful number, since it uses less digits than its factorization.

41221205512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5152650695 (or 5152650691 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

Adding to 41221205512 its reverse (21550212214), we get a palindrome (62771417726).

The spelling of 41221205512 in words is "forty-one billion, two hundred twenty-one million, two hundred five thousand, five hundred twelve".