41031221021 has 16 divisors (see below), whose sum is σ = 47136902400. Its totient is φ = 34986991488.

The previous prime is 41031221017. The next prime is 41031221051. The reversal of 41031221021 is 12012213014.

It is a cyclic number.

It is not a de Polignac number, because 41031221021 - 2² = 41031221017 is a prime.

It is a super-2 number, since 2×41031221021² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41031221051) 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, 1149440 + ... + 1184598.

It is an arithmetic number, because the mean of its divisors is an integer number (2946056400).

Almost surely, 2^41031221021 is an apocalyptic number.

It is an amenable number.

41031221021 is a deficient number, since it is larger than the sum of its proper divisors (6105681379).

41031221021 is a wasteful number, since it uses less digits than its factorization.

41031221021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36028.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 41031221021 its reverse (12012213014), we get a palindrome (53043434035).

The spelling of 41031221021 in words is "forty-one billion, thirty-one million, two hundred twenty-one thousand, twenty-one".